Entries |
Document | Title | Date |
20080243259 | MOBILE BEARING INSERT HAVING OFFSET DWELL POINT - A mobile tibial assembly includes a tibial tray and a tibial insert configured to move relative to the tibial tray. The tibial insert includes a platform having an upper bearing surface defining a dwell point of the upper bearing surface. The dwell point is spaced-apart from a center of the bearing surface. | 10-02-2008 |
20080262624 | Patient-Modified Implant And Associated Method - An orthopedic implant. The implant has a first portion including at least one patient-adjustable feature, and a second portion including at least one standard feature. | 10-23-2008 |
20090043396 | MOMENT INDUCED TOTAL ARTHROPLASTY PROSTHETIC - Exemplary embodiments include a mobile bearing tibial tray insert including a medial condyle receiver spaced apart from a lateral condyle receiver, the mobile bearing tibial tray insert also including a stabilizing post, where the mobile bearing tibial tray insert is adapted to rotate around a substantially vertical rotational axis offset laterally from the stabilizing post. In addition, the foregoing embodiments may be supplemented by a tibial tray and femoral component to comprise a total knee replacement system. The disclosure also includes exemplary methods for imparting axial rotation to a prosthetic joint, the method comprising shifting the axis of axial rotation between a tibial prosthesis and a femoral prosthesis of a prosthetic knee joint by providing at least one of offsetting a stabilization post associated with a medial-lateral midline of a tibial insert of the tibial prosthesis, increasing the radii of a medial receiver of the tibial insert of the tibial prosthesis to a greater extent than the radii of a medial condyle of the femoral prosthesis, and increasing conformity between a medial receiver of the tibial insert of the tibial prosthesis and a medial condyle. | 02-12-2009 |
20090082873 | FIXED-BEARING KNEE PROSTHESIS - A fixed-bearing prosthesis includes a femoral component having a medial condyle surface and a lateral condyle surface. The knee prosthesis also includes a bearing having a medial bearing surface configured to articulate with the medial condyle surface of the femoral component, and a lateral bearing surface configured to articulate with the lateral condyle surface of the femoral component. A tibial tray is secured to the bearing. The tibial tray has a platform with an elongated stem extending downwardly from a lower surface thereof. A peripheral rail extends along at least an anterior section of the perimeter of the tray's platform. The peripheral rail extends upwardly from an upper surface of the platform. A retaining rail extends upwardly from the upper surface of the platform and posteriorly away from the peripheral rail. | 03-26-2009 |
20090088861 | PROSTHESIS - A mobile bearing tibial implant is described which comprises a tibial component and a mediscal bearing component. The tibial component comprises a tibial plate having a proximal face and a distal face. A tibial post extends from the distal face of the tibial plate which in use will anchor the tibial plate to the proximal end of a resected tibia. The tibial compent additionally includes a generally rectangular tibial projection extending upwardly from the proximal face of the tibial plate, the central longitudinal plane of the said tibial projection being co-linearly located on the sagittal plane passing substantially through the center of the knee. The meniscal bearing component has a substantially flat distal face for glidable seating on the tibial plate and a proximal face configured to receive in use an articulating condylar surface of a femoral component. The meniscal component has a recess therein opening on the distal face of the component, the recess being shaped to receive the tibial projection and to allow the meniscal bearing component to rotate about a center of rotation passing through the tibial projection but to prevent or limit anterior/posterior translation of the meniscal bearing component on the tibial plate. | 04-02-2009 |
20090157190 | Osteotomy spacer - A device for use in connection with a bone, comprising a first surface and a second surface spaced apart from each other at a predetermined distance and angled relative to each other along a portion thereof. The device having a first ridge projecting from the first surface in a direction away from the second surface, the first ridge extending substantially along a length of the first surface, and a second ridge projecting from the second surface in a direction away from the first surface, the second ridge extending substantially along a length of the second surface in a direction substantially parallel to the first ridge. The device further includes a remote surface positioned more distant from the center of a bone, a proximate surface positioned more near the center of a bone, a fixed end surface, and a removable end surface extending in a first direction. The body of the device extends between the remote surface and the proximate surface in a medial-lateral direction and between the fixed end surface and the removable end surface in an anterior-posterior direction. A first score mark extends between the medial surface and the lateral surface in a direction substantially parallel to the direction of the removable end surface. | 06-18-2009 |
20090270995 | TIBIAL INSERT AND ASSOCIATED SURGICAL METHOD - A tibial insert includes a platform defining an upper bearing surface and a bottom surface. A keel of the tibial insert is coupled to the bottom surface of the platform. A surgical method for knee anthroplasty is also disclosed. | 10-29-2009 |
20100010635 | TIBIAL TRIALING ASSEMBLY AND METHOD OF TRIALING A TIBIAL IMPLANT - A trialing assembly for use during knee replacement procedures to determine size and position of a tibial plate implant as well as the size and thickness of the articular surface prior to implantation of the implant. The trialing assembly includes a broaching plate having a tibia engaging bottom surface adapted for placement atop a tibia and an opposite top surface, the bottom and top surfaces extending between an anterior edge and a posterior edge of the broaching plate. The broaching plate includes an anterior rail and a posterior rail protruding superiorly from the top surface and extending along the anterior and posterior edges, respectively. A trialing plate is configured to removably fit atop the broaching plate between the anterior and posterior rails. The trialing plate includes an engagement member extending from a superior surface of the trialing plate and adapted to engage with an articular surface provisional. | 01-14-2010 |
20100016980 | BASE COMPONENT FOR A TIBIAL IMPLANT - The invention relates to a base component for a tibial implant, comprising a lateral compartment ( | 01-21-2010 |
20100016981 | BONE REINFORCEMENT DEVICE - A reinforcement device ( | 01-21-2010 |
20100057212 | Porous Titanium Tibial Sleeves and Their Use in Revision Knee Surgery - The invention concerns monolithic foam sleeves that comprises titanium or titanium alloy foam having a porosity of 50 to 85% and possesses a proximal surface, a distal end, an interior wall that defines an interior channel and extends from the proximal surface to the distal end; and a terraced outer surface that tapers such that said sleeve is widest at the proximal surface and most narrow at the distal end. | 03-04-2010 |
20100063595 | ADJUSTABLE KNEE TIBIAL TRIAL INSERT - An adjustable tibial trial insert includes an upper plate having an upper articular surface and a lower plate. A height-adjustment mechanism of the insert is coupled to and positioned generally between the upper plate and the lower plate and is configured to move between a closed position where the upper and lower plates are adjacent each other and an opened position where the upper and lower plates are spaced-apart from each other in order to adjust a height or thickness of the insert. | 03-11-2010 |
20100076566 | Metal/alloy coated ceramic - Ceramic surface can be coated with a metal or metal alloy and have extraordinary holding power between the surface and coating. For example, MgTTZ can be coated with CPT and may have a static shear strength for the coated surface of at least about 2,000 or 3,000 or 5,000 or 7,000 pounds or greater. The coated ceramic may be a prosthetic surgical load bearing implant. | 03-25-2010 |
20100125339 | TRANSIENTLY MOBILE TIBIAL ENGAGEMENT - The present invention relates to a tibial prosthesis having an articulating component and a tray component. The articulating component is configured for attachment to the tray component. Additionally, the articulating component may be attached to the tray component in a first condition in which the articulating component is at least rotatable relative to the tray component. This allows for the tray component to be attached to the tibia in a position that provides for proper rotation of the tray component with respect to the tibia and/or prevents the tray component from overhanging the resected tibia. Then, the articulating component may be rotated and/or translated to a position that provides for proper alignment of the articulating component with a femoral prosthesis. Once in this positioned, a locking mechanism is used to rotationally fix the articulating component to the tray component. | 05-20-2010 |
20100131071 | Tibial component - A tibial knee joint prosthesis for attachment to a suitably prepared tibial bone, providing bearing portions in the lateral and medial compartments. The lateral and medial bearing surfaces of the component are inclined at different angles in the anterior to posterior direction of the knee, so that when mounted to the tibia, the lateral bearing surface of the prosthesis is higher than the medial bearing surface to the posterior side of the knee. In this way the lateral ligament is tightened progressively more than the medial ligament as the knee moves from extension to flexion, resulting in increased stability in the lateral compartment. | 05-27-2010 |
20100152858 | Structure improvement of orthopaedic implant - A structure improvement of orthopaedic implant includes a tibial baseplate, a tibial insert, and a reinforcement. The tibial baseplate forms a recess having a bottom that has a central portion defining a through hole extending through the tibial baseplate. The through hole has a top circumference that defines a circumferential groove extending outward. The tibial insert has a bottom forming a projection corresponding to the recess of the tibial baseplate for press-fitting to the tibial baseplate. A support is formed on at a central portion of a top of the tibial insert and defines a bore that extends through the tibial insert. The tibial insert forms two curved surfaces on opposite sides of the support to support contact and rolling. The reinforcement is inset in the tibial insert and includes a sleeve and a bolt. | 06-17-2010 |
20100179662 | MONOBLOCK CERAMIC PROSTHESIS DEVICES - Single-piece prosthesis elements chosen from among acetabular cup for hip prosthesis, tibial component and femoral component for knee prosthesis, comprising a body ( | 07-15-2010 |
20100204801 | IMPLANTS FOR THE TREATMENT OF OSTEOARTHRITIS OF THE KNEE - A replacement knee implant has a femoral implant and a tibial implant, each of which are inset in a bone surface. The tibial implant is generally elongated with one end rounded and an opposite end conforming to the shape of the tibia, and is made of a metal alloy or a ceramic. The upper surface is dished while the lower surface is planar and can be parallel or sloped relative to the upper surface. The femoral implant for implementation in a femoral condyle is rounded such that, when implemented, the femoral implant is flush at the anterior and posterior sides and protruding away from the femur between the anterior and posterior ends. The femoral implant can have an elongated keel for extending into the femur, and can be made from a highly cross-linked polyethylene. | 08-12-2010 |
20100298947 | Precision Total Knee Arthroplasty - Provided is a novel modular tibial prosthesis that includes an articulation component formed by direct pressure molding of a resin composition into a tibial tray component to provide a factory formed resin-metal composite structure a tibial tray module. The tibial tray component being capable of releasable attachment to an underlying keel element. A method of manufacture of the tibial prosthesis is also disclosed. | 11-25-2010 |
20100305711 | Methods and Apparatus for Performing Knee Arthroplasty - Methods and apparatus for performing knee arthroplasty, including, but not limited to, bicruciate retaining knee arthroplasty, are described herein. Methods and apparatus for preparing a distal femur for a femoral implant as well as methods and apparatus for preparing a proximal tibia for a tibial implant are described. These methods and apparatus, in at least some embodiments and uses, facilitate decreasing the complexity of knee arthroplasty procedures such as bicruciate retaining procedures, while maintaining, if not improving on, the safety, accuracy and/or effectiveness of such procedures. | 12-02-2010 |
20100331991 | Methods and Apparatus for Performing Knee Arthroplasty - Methods and apparatus for performing knee arthroplasty, including, but not limited to, bicruciate retaining knee arthroplasty, are described herein. Methods and apparatus for preparing a distal femur for a femoral implant as well as methods and apparatus for preparing a proximal tibia for a tibial implant are described. These methods and apparatus, in at least some embodiments and uses, facilitate decreasing the complexity of knee arthroplasty procedures such as bicruciate retaining procedures, while maintaining, if not improving on, the safety, accuracy and/or effectiveness of such procedures. | 12-30-2010 |
20110009973 | METHODS AND APPARATUSES FOR ATTACHING TISSUE TO ORTHOPAEDIC IMPLANTS - Methods and apparatuses for attaching tissue structures to orthopaedic implants. In one exemplary embodiment, the methods and apparatuses are used to attach soft tissue and/or bone to a proximal tibial implant. In another exemplary embodiment, the methods and apparatuses are used to attach soft tissue and/or bone to a proximal femoral implant. | 01-13-2011 |
20110009974 | TIBIAL AUGMENTS FOR USE WITH KNEE JOINT PROSTHESES, METHOD OF IMPLANTING THE TIBIAL AUGMENT, AND ASSOCIATED TOOLS - A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted within different portions of the slot. Methods for using the tools and/or implanting the prosthetic devices discussed above are also described. | 01-13-2011 |
20110015750 | KNEE SYSTEM AND METHOD OF MAKING SAME - A femoral prosthesis may be formed as a femoral component incorporating a base material and an articulating material. In one exemplary embodiment, the base material is a metal and the articulating material is a polymer. Specifically, the base material provides strength and rigidity to the femoral component, while the articulating material contacts a tibial prosthesis or natural tibia during joint articulation. In one exemplary embodiment, the articulating material forms the articulating surface of one or more condyle portions of the femoral component. | 01-20-2011 |
20110029091 | Patient-Adapted and Improved Orthopedic Implants, Designs, and Related Tools - Methods and devices are disclosed relating improved articular models, implant components, and related guide tools and procedures. In addition, methods and devices are disclosed relating articular models, implant components, and/or related guide tools and procedures that include one or more features derived from patient-data, for example, images of the patient's joint. The data can be used to create a model for analyzing a patient's joint and to devise and evaluate a course of corrective action. The data also can be used to create patient-adapted implant components and related tools and procedures. | 02-03-2011 |
20110029092 | PROSTHESIS WITH SURFACES HAVING DIFFERENT TEXTURES AND METHOD OF MAKING THE PROSTHESIS - A joint prosthesis system is suitable for cemented fixation. The system has two metal implant components and a bearing. One of the metal implant components has an articulation surface for articulation with the bearing. The other metal implant component has a mounting surface for supporting the bearing. One of the metal implant components includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augment. | 02-03-2011 |
20110066248 | Position Adjustable Trial Systems for Prosthetic Implants - A trial system for an implantable joint replacement includes a guide assembly having a baseplate and a guide plate, the guide plate rotatable relative to the base plate about a rotation axis extending through the guide plate and the baseplate while directly connected to the baseplate. An adjustment mechanism is actuable to selectively control the rotational juxtaposition of the guide plate relative to the baseplate. The rotation axis may be medially offset from the center of the guide assembly. A single instrument may be used to rotate the guide plate relative to the base plate and lock the plates in the selected juxtaposition. The guide plate provides in situ positionable cutting guidance for implantation of prosthetic joint components. The system may further include an articulating insert trial mounted on the guide assembly to determine preferred joint alignment and/or optimal positioning of the guide plate. | 03-17-2011 |
20110066249 | MODULAR BONE IMPLANT, TOOL, AND METHOD - Modular bone implants, means of assembly, and their method of use are presented. | 03-17-2011 |
20110082559 | TIBIAL IMPLANT BASE - An orthopedic prosthesis includes a tibial implant and a tibial insert. The tibial implant includes an upper surface, a medial side, a lateral side and a first locking structure provided on the upper surface where the medial side and the lateral side of the tibial implant are defined by a medial-lateral midline. The tibial insert includes a second locking structure provided on its bottom surface. The first and second locking structures are configured for engaging each other along an engagement direction vector when the tibial insert is inserted into the tibial base towards the posterior side. The engagement direction vector is angled away from the medial-lateral midline of the tibial implant towards the medial side of the tibial implant by a predetermine angle. | 04-07-2011 |
20110087332 | Patient-adapted and improved articular implants, designs and related guide tools - Methods and devices are disclosed relating improved articular models, implant components, and related guide tools and procedures. In addition, methods and devices are disclosed relating articular models, implant components, and/or related guide tools and procedures that include one or more features derived from patient-data, for example, images of the patient's joint. The data can be used to create a model for analyzing a patient's joint and to devise and evaluate a course of corrective action. The data also can be used to create patient-adapted implant components and related tools and procedures. | 04-14-2011 |
20110098823 | TIBIAL COMPONENT WITH FLEXIBLE RIM - A tibial prosthesis including an articulating component and a tray component with a rim that extends proximally to support the articulating component, the tray component enabling flexion of the rim relative to a bone-contacting surface of the tray component. | 04-28-2011 |
20110098824 | TIBIAL COMPONENT WITH ENHANCED RADIAL CEMENT FIXATION - A cemented tibial prosthesis having a bone-contacting surface with a porous outer rim. With the bone-contacting surface seated against a resected proximal tibia, bone cement or another suitable adhesive will travel into the pores of the porous outer rim to enhance the connection between the tibial prosthesis and the tibia. | 04-28-2011 |
20110106268 | PROSTHESIS FOR CEMENTED FIXATION AND METHOD FOR MAKING THE PROSTHESIS - A joint prosthesis system is suitable for cemented fixation. The system has two metal implant components and a bearing. One of the metal implant components has an articulation surface for articulation with the bearing. The other metal implant component has a mounting surface for supporting the bearing. One of the metal implant components includes an extension, such as a stem or pegs, with an exposed outer surface. The metal implant component from which the extension extends comprises titanium and the exposed outer surface of the extension comprises a different form of titanium. A method of making the joint prosthesis is also disclosed. | 05-05-2011 |
20110125283 | HIGH PERFORMANCE KNEE PROSTHESES - Knee prostheses featuring components that more faithfully replicate the structure and function of the human knee joint in order to provide, among other benefits: greater flexion of the knee in a more natural way by promoting or at least accommodating internal tibial rotation in a controlled way, replication of the natural screw home mechanism, and controlled articulation of the tibia and femur respective to each other in a more natural way. In a preferred embodiment, such prostheses include an insert component disposed between a femoral component and a tibial component, the insert component preferably featuring among other things a reversely contoured posterolateral bearing surface that helps impart internal rotation to the tibia as the knee flexes. Other surfaces can also be specially shaped to achieve similar results, preferably using iterative automated techniques that allow testing and iterative design taking into account a manageable set of major forces acting on the knee during normal functioning, together with information that is known about natural knee joint kinetics and kinematics. | 05-26-2011 |
20110153025 | Method of Forming a Polymer Component - This invention relates to a method of forming a polymer component and comprises blending polymer particles with antioxidant to form a mixture in which the antioxidant coats the polymer particles, irradiating the mixture to cross-link the polymer particles therein and forming the irradiated mixture into a consolidated component. The invention also relates to a method of forming an articular surface for a prosthesis and a prosthesis having a polymer articular bearing surface wherein at least one pre-determined portion of the bearing surface is provided with cross-linked polymer bonds. | 06-23-2011 |
20110184526 | PATIENT-MODIFIED IMPLANT - An orthopedic implant includes a first portion including at least one feature modified to be patient-specific and match the anatomy of a specific patient from a three-dimensional digital image of a patient's joint using computer modeling. The orthopedic implant includes a non-custom inner bone-engaging surface including a plurality of planar surfaces configured for engagement with non-custom bone cuts. | 07-28-2011 |
20110190898 | CRUCIATE-RETAINING KNEE PROSTHESIS - Certain embodiments generally provide an improved tibial base member comprising keel portions that allow one or both cruciate ligaments to be preserved. Other embodiments provide improved lateral and/or medial inserts having a mesial lip that helps relieve and/or prevent impingement between the femoral component and the tibial eminence. Other embodiments provide improved femoral components having various chamfers to provide additional clearance with respect to the tibial eminence and posterior cruciate ligament without decreasing bone coverage. | 08-04-2011 |
20110190899 | PATIENT-SPECIFIC AUGMENTS - A patient-specific augment can be attached to an implant component for a bone of a joint of a patient. The patient-specific augment has first and second surfaces. The first surface is a three-dimensional patient-specific surface that closely matches and can mate to a substantially unaltered and unresected surface of a bone defect of the specific patient only in one position. The second surface is designed to engage a non-custom surface of the implant. | 08-04-2011 |
20110213467 | ORTHOPAEDIC IMPLANT WITH WOVEN INGROWTH MATERIAL - Methods and apparatuses for attaching soft tissue and bone to orthopaedic implants. The orthopaedic implants are provided with a woven ingrowth material to facilitate attachment of soft tissue and bone thereto. In one embodiment, the woven ingrowth material is formed as a patch or region of woven material attached to the implant. In another embodiment, a sleeve formed of woven ingrowth material encompasses the majority of the implant. | 09-01-2011 |
20110295377 | ORTHOPAEDIC IMPLANT SYSTEM AND FASTENERS FOR USE THEREIN - Orthopaedic assemblies including a tibial component and one of a fixed tibial insert or a rotatable tibial insert. The assemblies may include structure to prevent undesired movement between the tibial component and insert. For example, a retaining tab may be provided on the tibial component that couples to a tab opening on a surface of the tibial insert (either the fixed or rotatable insert). When assembled, the retaining tab may be covered to avoid possible irritation to the patient's surrounding anatomy. The fixed tibial insert may be provided with a tab opening that provides a minimal amount clearance with the retaining tab to help prevent rotation of the fixed tibial insert. The rotatable tibial insert may be provided with a tab opening with more clearance with the retaining tab to allow at least some rotation with the tibial component. | 12-01-2011 |
20120022659 | ASYMMETRIC TIBIAL COMPONENTS FOR A KNEE PROSTHESIS - An orthopaedic tibial prosthesis includes a tibial baseplate with an asymmetric periphery which promotes proper positioning and orientation on a resected tibia, while also facilitating enhanced kinematics, soft-tissue interaction, and long-term fixation of the complete knee prosthesis. The asymmetric baseplate periphery is sized and shaped to substantially match portions of the periphery of a typical resected proximal tibial surface, such that proper location and orientation is evident by resting the baseplate on the tibia. The baseplate periphery provides strategically positioned relief and/or clearance between the baseplate periphery and bone periphery, such as in the posterior-medial portion to prevent deep-flexion component impingement, and in the anterior-lateral portion to avoid undue interaction between the anatomic iliotibial band and prosthesis components. | 01-26-2012 |
20120022660 | ASYMMETRIC TIBIAL COMPONENTS FOR A KNEE PROSTHESIS - An orthopaedic tibial prosthesis includes a tibial baseplate with an asymmetric periphery which promotes proper positioning and orientation on a resected tibia, while also facilitating enhanced kinematics, soft-tissue interaction, and long-term fixation of the complete knee prosthesis. The asymmetric baseplate periphery is sized and shaped to substantially match portions of the periphery of a typical resected proximal tibial surface, such that proper location and orientation is evident by resting the baseplate on the tibia. The baseplate periphery provides strategically positioned relief and/or clearance between the baseplate periphery and bone periphery, such as in the posterior-medial portion to prevent deep-flexion component impingement, and in the anterior-lateral portion to avoid undue interaction between the anatomic iliotibial band and prosthesis components. | 01-26-2012 |
20120035736 | Tibial component - A tibial knee joint prosthesis for attachment to a suitably prepared tibial bone, providing bearing portions in the lateral and medial compartments. The lateral and medial bearing surfaces of the component are inclined at different angles in the anterior to posterior direction of the knee, so that when mounted to the tibia, the lateral bearing surface of the prosthesis is higher than the medial bearing surface to the posterior side of the knee. In this way the lateral ligament is tightened progressively more than the medial ligament as the knee moves from extension to flexion, resulting in increased stability in the lateral compartment. | 02-09-2012 |
20120083893 | KNEE ARTHROPLASTY PROSTHESIS AND METHOD - A knee arthroplasty prosthesis includes a femoral component having multiple pieces with engagement means provided for engaging various pieces of the femoral component to one another following their insertion in the incised area of the femur. A tibial component includes multiple pieces designed for assembly following positioning in the incision. The tibial component includes a Morse taper cavity on one piece of the tibial component and a Morse taper extension on another member of the component for receipt therein. | 04-05-2012 |
20120172995 | IMPLANTS FOR THE TREATMENT OF OSTEOARTHRITIS OF THE KNEE - A replacement knee implant has a femoral implant and a tibial implant, each of which are inset in a bone surface. The tibial implant is generally elongated with one end rounded and an opposite end conforming to the shape of the tibia, and is made of a metal alloy or a ceramic. The upper surface is dished while the lower surface is planar and can be parallel or sloped relative to the upper surface. The femoral implant for implementation in a femoral condyle is rounded such that, when implemented, the femoral implant is flush at the anterior and posterior sides and protruding away from the femur between the anterior and posterior ends. The femoral implant can have an elongated keel for extending into the femur, and can be made from a highly cross-linked polyethylene. | 07-05-2012 |
20120179266 | BICRUCIATE RETAINING TIBIAL BASEPLATE DESIGN AND METHOD OF IMPLANTATION - A base component for a tibial implant has a lateral compartment and a medial compartment spaced from the lateral compartment defining an open central section therebetween. A connecting portion connects the medial and lateral compartments at an anterior end of the base component which anterior end is located adjacent the anterior tibia. The open central section of the base component intermediate the spaced medial and lateral compartments is open to a posterior end of the base component. The medial and lateral compartments have a bone contacting surface and a superiorly facing surface. The connecting portion has a curved anteriorly facing surface and has a first angled surface extending at an angle from adjacent the anterior end of the base component at a bone contacting surface of the connecting portion superiorly to a posterior end of the connecting portion. The first angled surface defining an anterior end of the open central section. | 07-12-2012 |
20120191205 | Patient-adapted and improved articular implants, designs and related guide tools - Methods and devices are disclosed relating improved articular models, implant components, and related guide tools and procedures. In addition, methods and devices are disclosed relating articular models, implant components, and/or related guide tools and procedures that include one or more features derived from patient-data, for example, images of the patient's joint. The data can be used to create a model for analyzing a patient's joint and to devise and evaluate a course of corrective action. The data also can be used to create patient-adapted implant components and related tools and procedures. | 07-26-2012 |
20120191206 | HERMETICALLY SEALED PROSTHETIC COMPONENT AND METHOD THEREFOR - A prosthetic component suitable for long-term implantation is provided. The prosthetic component measures a parameter of the muscular-skeletal system is disclosed. The prosthetic component comprises a first structure having at least one support surface, a second structure having at least one feature configured to couple to bone, and at least one sensor. The electronic circuitry and sensors are hermetically sealed within the prosthetic component. The sensor couples to the support surface of the first structure. The first and second structure are coupled together housing the at least one sensor. In one embodiment, the first and second structure are welded together forming the hermetic seal that isolates the at least one sensor from an external environment. The at least one sensor can be a pressure sensor for measuring load and position of load. | 07-26-2012 |
20120197410 | SYSTEM AND METHODS FOR PATELLAR TENDON ADVANCEMENT IN QUADRUPEDS - Various methods and apparatus for cranially advancing the tuberosity and patellar tendon of a quadruped are disclosed. The patellar tendon can be advanced directly or indirectly by performing an osteotomy on the tuberosity, and subsequently advancing the tuberosity cranially to an advanced position. Implants are further disclosed for maintaining the patellar tendon, and in some embodiments also the tuberosity, in the advanced position. | 08-02-2012 |
20120209394 | Patient-Adapted and Improved Articular Implants, Designs and Related Guide Tools - Methods and devices are disclosed relating improved articular models, implant components, and related guide tools and procedures. In addition, methods and devices are disclosed relating articular models, implant components, and/or related guide tools and procedures that include one or more features derived from patient-data, for example, images of the patient's joint. The data can be used to create a model for analyzing a patient's joint and to devise and evaluate a course of corrective action. The data also can be used to create patient-adapted implant components and related tools and procedures. | 08-16-2012 |
20120215319 | REUSABLE ORTHOPAEDIC INSTRUMENT HAVING DRAIN HOLES - A reusable orthopaedic instrument includes a reusable orthopedic trial having a first outer surface and a second outer surface that is opposite the first outer surface. The second outer surface includes a plurality of sidewalls extending outwardly therefrom to form a cavity. A drain hole is formed in the second outer surface at a location within the cavity. The drain hole extends through the reusable orthopaedic trial from the second outer surface to the first outer surface. Further, the second outer surface slopes downwardly from the plurality of sidewalls toward the drain hole. | 08-23-2012 |
20120226359 | SHIELDED PROSTHETIC COMPONENT - A prosthetic component suitable for long-term implantation is provided. The prosthetic component measures a parameter of the muscular-skeletal system is disclosed. The prosthetic component comprises a first structure having at least one support surface, a second structure having at least one feature configured to couple to bone, and at least one sensor. The electronic circuitry and sensors are hermetically sealed within the prosthetic component. The sensor couples to the support surface of the first structure. The first and second structure are coupled together housing the at least one sensor. The first and second structures comprises steel, titanium, cobalt or an alloy thereof. At least one of the first or second structures is coupled to ground to shield the sensor from parasitic coupling. The at least one sensor can be a pressure sensor for measuring load and position of load. | 09-06-2012 |
20120226360 | PROSTHETIC COMPONENT FOR MONITORING JOINT HEALTH - A prosthetic component suitable for long-term implantation is provided. The prosthetic component includes electronic circuitry and sensors to measure a parameter of the muscular-skeletal system. The prosthetic component comprises a first structure having at least one support surface, a second structure having at least one feature configured to couple to bone, and at least one sensor. The electronic circuitry and sensors are hermetically sealed within the prosthetic component. The prosthetic component includes at least on transmissive region. The transmissive region can be located in a region that has exposure to a region outside the joint. The transmissive region can comprise glass. One or more sensors can be used to monitor synovial fluid in proximity to the joint to determine joint health. The transmissive region can be used to support communication between the electronic circuitry and remote system. | 09-06-2012 |
20120303131 | SURGICAL APPARATUS - A single use cutting jig for use in cutting a bone in orthopaedic surgery, the cutting jig having: a first face shaped to receive the end of the bone to be cut, a second face provided with one or more cutting slot, the or each slot extending through the cutting jig from the second face to the first face and being shaped for receiving a cutting device, wherein the cutting jig is molded from plastic, and wherein the interior surface of the or each cutting slot is provided with a metal coating. | 11-29-2012 |
20120310361 | STABILIZING PROSTHESIS SUPPORT STRUCTURE - A tibial support structure includes a platform portion and a medullary portion that are monolithically formed as a single piece. The medullary and platform portions of the augment component are adapted to accommodate and mechanically attach to a tibial baseplate, and are individually shaped and sized to replace damaged bone stock both within the tibia, as well at the tibial proximal surface. The monolithic formation of the tibial support structure provides a strong and stable foundation for a tibial baseplate and facilitates restoration of the anatomic joint line, even where substantial resections of the proximal tibia have been made. The tibial support structure may be made of a bone-ingrowth material which facilitates preservation and rebuilding of the proximal tibia after implantation, while also preserving the restored joint line by allowing revision surgeries to be performed without removal of the tibial support structure. | 12-06-2012 |
20120310362 | IMPLANT FOR RESTORING NORMAL RANGE FLEXION AND KINEMATICS OF THE KNEE - Embodiments of the invention provide knee prostheses which more faithfully and closely replicate the function, anatomy and physiology of the normal human knee yielding a number of advantages. Among other things, such prostheses can provide an increased range of motion and function more normally particularly in extension, deep flexion and during normal gait. Knee prostheses according to various aspects of the invention recognize that during movement of the knee, particularly during flexion, the kinematics of the bones of the knee are a result of achieving equilibrium of the forces that cause motion of the knee. In addition, the shape of the articular surfaces acting in combination with forces imposed by various muscles, ligaments and tendons, determines the direction of the large contact forces. | 12-06-2012 |
20120323333 | REVISION KNEE TIBIAL LOCKING MECHANISM - A tibial prosthesis assembly can comprise a tibial tray and a tibial insert. The tibial tray can have an inferior bone engaging surface, a superior surface, and a first retaining feature. The tibial insert can have an inferior tray engaging surface, a superior bearing surface, and a second retaining feature. The first and second retaining features can cooperate to inhibit substantial lift-off of the tibial insert away from the superior surface of the tibial tray while permitting a predetermined amount of rotation of the tibial insert around the superior surface in an assembled position. | 12-20-2012 |
20120330431 | DEVICE FOR UNICOMPARTMENTAL KNEE ARTHROPLASTY - A device for unicompartmental arthroplasty of the knee. The device permits arthroplasty of the medial and/or lateral tibial condyle, and allows for securing of the device without the use of bone cement. Such a device comprises a baseplate, the baseplate comprising a first surface configured to be secured to a surgically prepared medial (or lateral) compartment of a proximal end of a patient's tibia, and an opposing second surface configured to replicate a medial (or lateral) tibial condyle; a flange adjacent the baseplate, the flange shaped to interface with a surgically prepared anterior surface of the proximal end of the patient's tibia, the flange comprising an orifice therethrough; and at least one anchor protruding from the first surface, the at least one anchor arranged to coincide with at least one corresponding surgically prepared void in the patient's tibia. | 12-27-2012 |
20130006376 | METHOD OF USING A TRIALING SYSTEM FOR A KNEE PROSTHESIS - A method of assembling a surgical instrument includes selecting a tibial bearing surface trial component, orienting a shim relative to the tibial bearing surface trial component, and securing the shim to the tibial bearing surface trial component. | 01-03-2013 |
20130006377 | SURGICAL INSTRUMENTS FOR USE IN SURGICALLY PREPARING A TIBIA FOR IMPLANTATION OF A PROSTHETIC COMPONENT - Orthopaedic surgical instruments including a base trial adapted to be positioned on a proximal end of a patient's resected tibia, and a guide tower including a tower base adapted to be positioned on the base trial. A method of use is also described. | 01-03-2013 |
20130018478 | PROSTHETIC IMPLANT SUPPORT STRUCTURE - A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components. | 01-17-2013 |
20130024001 | ASYMMETRIC TIBIAL COMPONENTS FOR A KNEE PROSTHESIS - An orthopaedic tibial prosthesis includes a tibial baseplate with features designed for use with small-stature knee-replacement patients. The tibial prosthesis may include a shortened tibial keel, tibial keel fins which define a large angle with respect to a longitudinal axis of the keel, and/or tibial keel fins which extend along less than the entire longitudinal extent of the keel. | 01-24-2013 |
20130030540 | TIBIA IMPLANT FOR TIGHTENING THE PATELLA TENDONS - A tibia implant for tightening the patella tendons, has a vertical cross section which in mounted position tapers downward, an essentially vertically arranged base plate which carries a sponge structure, wherein the sponge structure on both sides rests against a respective vertical cut surface of a vertical knee proximal incision of the tibia. | 01-31-2013 |
20130046384 | HIGH PERFORMANCE KNEE PROSTHESES - Knee prostheses featuring components that more faithfully replicate the structure and function of the human knee joint in order to provide, among other benefits: greater flexion of the knee in a more natural way by promoting or at least accommodating internal tibial rotation in a controlled way, replication of the natural screw home mechanism, and controlled articulation of the tibia and femur respective to each other in a more natural way. In a preferred embodiment, such prostheses include an insert component disposed between a femoral component and a tibial component, the insert component preferably featuring among other things a reversely contoured posterolateral bearing surface that helps impart internal rotation to the tibia as the knee flexes. Other surfaces can also be specially shaped to achieve similar results, preferably using iterative automated techniques that allow testing and iterative design taking into account a manageable set of major forces acting on the knee during normal functioning, together with information that is known about natural knee joint kinetics and kinematics. | 02-21-2013 |
20130103160 | COMPOSITE TRIAL PROSTHESIS - A composite trial prosthesis comprises a first component ( | 04-25-2013 |
20130150977 | Spacers for Redistributing Forces for the Patella - Implant apparatus and methods directed toward treating conditions involving the knee joint and the patella specifically are disclosed. Full range of motion of the knee joint and tissue integrity are maintained in treatment approaches involving implanting a joint surface load reducing implant proximate the joint to change the direction of the tendons or muscles exerting forces on the joints. | 06-13-2013 |
20130166037 | TIBIAL PROSTHETIC COMPONENT FOR A PARTIAL OR UNICONDYLAR BEARING KNEE REPLACEMENT, METHOD OF SELECTING SUCH A TIBIAL PROSTHETIC COMPONENT, METHOD OF IMPLANTING SUCH A TIBIAL PROSTHETIC COMPONENT AND A KIT FOR A SURGEON - The invention concerns a tibial prosthetic component comprising a plate ( | 06-27-2013 |
20130173010 | CRUCIATE-RETAINING TIBIAL PROSTHESIS - A tibial prosthesis comprises a medial base portion configured to engage a medial surface of a tibia and a lateral base portion configured to engage a lateral surface of the tibia. At least a portion of the medial and lateral base portions are separated by a passage interposed therebetween. The tibial prosthesis also comprises a bridge coupling the medial base portion and the lateral base portion, wherein at least a portion of the bridge is elevated above a portion of the passage between the medial base portion and the lateral base portion. The bridge may define an underlying area that receives at least a portion of a tibial eminence when the tibial prosthesis is engaged with the tibia, wherein the height of the bridge varies in a superior direction across the passage. | 07-04-2013 |
20130173011 | LOCKING ASSEMBLY FOR TIBIAL PROSTHESIS COMPONENT - An orthopedic prosthetic system comprises a base portion and an elongated guide member protruding from a bottom surface of the base portion. The elongated guide member extends from a posterior edge of the base portion toward an anterior edge of the base portion and comprises an overhang element and an undercut face. The prosthetic system further comprises an insert portion configured to slideably engage the base portion and the elongated guide member. The insert portion comprises an underhang element configured to engage at least a portion of an undercut area defined by the overhang element and undercut face of the elongated guide member. | 07-04-2013 |
20130190885 | METHOD AND APPARATUS FOR PERFORMING AN OPEN WEDGE, HIGH TIBIAL OSTEOTOMY - An osteotomy implant for disposition in a wedge-shaped osteotomy opening in a bone, the implant comprising:
| 07-25-2013 |
20130190886 | PATELLAR LIGAMENT SPACER FOR ACL INJURIES - A method and implant to treat anterior cruciate ligament (ACL) injuries are disclosed. The method involves advancing the insertion of the patellar ligament to the proximal tibia. The implant includes a spacer ( | 07-25-2013 |
20130204383 | TIBIAL BASEPLATES FOR SPECIAL PATIENT POPULATIONS - A family of tibial baseplates can comprise a plurality of tibial baseplates. Each of the plurality of tibial baseplates can define a common nominal baseplate size and a unique, non-congruent tibial baseplate periphery as compared to the other tibial baseplates of the family of tibial baseplates. | 08-08-2013 |
20130226304 | TIBIAL TRAY SYSTEM AND METHOD OF IMPLANTATION - A tibial tray system includes a tibial tray configured for attachment to a surgically-prepared surface of the proximal end of the tibia. The tibial tray includes a track disposed in a generally A-P direction. The tibial tray system also includes a spline configured to engage the track and to be positionable in at least one location along the track. The spline includes a bearing surface that is configured to contact a femoral component of the knee prosthesis to guide movement of the femoral component during extension and flexion of the knee. | 08-29-2013 |
20130261757 | TIBIAL PROSTHESIS SYSTEMS, KITS, AND METHODS - Tibial prosthesis systems for implantation or use in a knee joint are disclosed. A tibial prosthesis system can include a bearing component, a base component, a shim component, and optionally a spacer component. The shim or spacer component can be inserted between an inferior surface of the bearing component and a superior surface of the base component. The insertion of the shim or spacer component can provide spacing adjustment between the bearing and base components. The shim component can include one or both of a medial edge having a different height than a lateral edge or an anterior edge having a different height than a posterior edge. The differing edge height of the shim component can provide a surgeon with knee joint kinematic insight regarding an angled bone cut before the cut is made, and can allow for sizing of an appropriately permanent prosthesis system using a reduced number of provisional components. | 10-03-2013 |
20130261758 | TIBIAL PROSTHESIS SYSTEMS, KITS, AND METHODS - Tibial prosthesis methods for balancing a knee joint during a surgical procedure are disclosed. A method can comprise inserting a first tibial shim component between a tibial bearing component and a tibial base or a tibial plate component in an anterior/posterior direction. The first tibial shim component can include one or both of a medial edge having a different height than a lateral edge or an anterior edge having a different height than a posterior edge. The method can further comprise testing one or more of a stability, a force balance, or a range of motion of a knee joint in which the first tibial shim component is inserted. If the testing result is not satisfactory, the method can include removing the first tibial shim component, and inserting a second tibial shim component between the tibial bearing component and the tibial base or tibial plate component in the anterior/posterior direction. | 10-03-2013 |
20130289731 | PROSTHETIC TIBIAL COMPONENT FOR KNEE JOINT PROSTHESIS - A prosthetic tibial component for a knee joint, said prosthetic tibial component comprising:
| 10-31-2013 |
20130304221 | TIBIAL AUGMENTS FOR USE WITH KNEE JOINT PROSTHESES, METHOD OF IMPLANTING THE TIBIAL AUGMENT, AND ASSOCIATED TOOLS - A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted within different portions of the slot. Methods for using the tools and/or implanting the prosthetic devices discussed above are also described. | 11-14-2013 |
20130325136 | TIBIAL TRIAL INSTRUMENTS AND METHOD OF USING SAME - An orthopaedic surgical instrument assembly includes a tibial base trial adapted to be positioned on a surgically-prepared proximal end of a patient's tibia, an intramedullary orthopaedic surgical instrument engaged with a lower surface of the tibial base trial, and a fastener configured to pivot relative to the tibial base trial. The fastener is configured to engage with the intramedullary orthopaedic surgical instrument to removably couple the intramedullary orthopaedic surgical instrument to the tibial base trial. | 12-05-2013 |
20140005792 | METHODS AND COMPOSITIONS FOR ARTICULAR RESURFACING | 01-02-2014 |
20140025175 | ASYMMETRIC TIBIAL COMPONENTS FOR A KNEE PROSTHESIS - An orthopaedic tibial prosthesis includes a tibial baseplate with an asymmetric periphery which promotes proper positioning and orientation on a resected tibia, while also facilitating enhanced kinematics, soft-tissue interaction, and long-term fixation of the complete knee prosthesis. The asymmetric baseplate periphery is sized and shaped to substantially match portions of the periphery of a typical resected proximal tibial surface, such that proper location and orientation is evident by resting the baseplate on the tibia. The baseplate periphery provides strategically positioned relief and/or clearance between the baseplate periphery and bone periphery, such as in the posterior-medial portion to prevent deep-flexion component impingement, and in the anterior-lateral portion to avoid undue interaction between the anatomic iliotibial band and prosthesis components. | 01-23-2014 |
20140025176 | ASYMMETRIC TIBIAL COMPONENTS FOR A KNEE PROSTHESIS - An orthopaedic tibial prosthesis includes a tibial baseplate with an asymmetric periphery which promotes proper positioning and orientation on a resected tibia, while also facilitating enhanced kinematics, soft-tissue interaction, and long-term fixation of the complete knee prosthesis. The asymmetric baseplate periphery is sized and shaped to substantially match portions of the periphery of a typical resected proximal tibial surface, such that proper location and orientation is evident by resting the baseplate on the tibia. The baseplate periphery provides strategically positioned relief and/or clearance between the baseplate periphery and bone periphery, such as in the posterior-medial portion to prevent deep-flexion component impingement, and in the anterior-lateral portion to avoid undue interaction between the anatomic iliotibial band and prosthesis components. | 01-23-2014 |
20140025177 | ASYMMETRIC TIBIAL COMPONENTS FOR A KNEE PROSTHESIS - An orthopaedic tibial prosthesis includes a tibial baseplate with an asymmetric periphery which promotes proper positioning and orientation on a resected tibia, while also facilitating enhanced kinematics, soft-tissue interaction, and long-term fixation of the complete knee prosthesis. The asymmetric baseplate periphery is sized and shaped to substantially match portions of the periphery of a typical resected proximal tibial surface, such that proper location and orientation is evident by resting the baseplate on the tibia. The baseplate periphery provides strategically positioned relief and/or clearance between the baseplate periphery and bone periphery, such as in the posterior-medial portion to prevent deep-flexion component impingement, and in the anterior-lateral portion to avoid undue interaction between the anatomic iliotibial band and prosthesis components. | 01-23-2014 |
20140031947 | TIBIAL TUBEROSITY ADVANCEMENT IMPLANT - A tibial tuberosity advancement implant and method includes a spacer body made of biocompatible, biodegradable material and having a main section with at least one bony growth orifice therethrough and a proximal slot and at least one fin extending from the main section by at least one connector. A metal clip is slideable into the proximal slot of the spacer body main section and includes spaced screw holes for securing the spacer body to the advanced tibial tuberosity and the tibia when the implant is placed in the space between the advanced tibial tuberosity and the tibia. | 01-30-2014 |
20140039636 | Connecting Mechanism for Medial and Lateral Polyethylene Bearing Surfaces for Knee Replacement - Disclosed herein are improved methods, apparatus and/or systems for a tibial implant assembly that can facilitate balancing, positioning, insertion, locking and maneuvering of the modular tibial inserts during knee surgery. The system may include a plurality of modular tibial inserts with locking or engagement mechanisms that allow creation of a modular insert assembly, and a corresponding tibial tray and optional tray components. The system allows the quick and convenient mating and locking of the tibial insert assembly to the tibial tray. The various components can accommodate mobile-bearing and fixed-bearing designs for the tibial tray. | 02-06-2014 |
20140052268 | TIBIAL PROSTHESIS - A tibial prosthesis, and, particularly, a fixed bearing tibial prosthesis has a two-pronged securement mechanism. The securement mechanism may or may not be angled. Advantageously, the securement mechanism, working atone or in cooperation with other securement features, minimizes micromotion between the tibial tray and tibial bearing component. | 02-20-2014 |
20140067076 | TIBIAL INSERT LOCKING MECHANISM - A tibial implant includes a baseplate having a proximally facing surface surrounded at least in part by a proximally extending wall. The wall has a ramp surface extending from the wall towards the baseplate proximally facing baseplate surface and a bore located distally of the ramp. A polyethylene bearing insert is mounted on the baseplate and has a distally facing surface engaging the proximally facing surface of the baseplate. The distally facing bearing insert surface has a recess and the insert has a side surface with a passageway extending from the recess through the insert side surface. A spring detent is mounted in the bearing insert recess and has a moveable pin biased outwardly of the bearing insert side surface and into the bore of the baseplate. | 03-06-2014 |
20140067077 | KNEE COMPONENT HAVING ORBITAL INTERFACE BOSS - A knee prosthesis constructed in accordance to the present disclosure includes a femoral component and a boss. The femoral component can have a first condylar portion and a second condylar portion connected by an inner condylar portion that defines an intercondylar recess, the inner condylar portion having a first engagement portion comprising a first plurality of engaging members extending therefrom. The boss can have a longitudinal body extending along a boss axis between first and second ends. The first end can be configured to selectively mate with a stem. The second end can include a second engagement portion comprising a second plurality of engaging members extending therefrom. The second engagement portion of the boss can be selectively coupled to the first engagement portion of the femoral component in a plurality of discrete positions to attain a corresponding plurality of angles of the boss axis relative to the femoral component. | 03-06-2014 |
20140107795 | OSTEOARTHRITIS TREATMENT AND DEVICE - A method for treating arthritis of a joint includes identifying a bone lesion in a bone adjacent to the joint; and implanting in the bone a reinforcing member in or adjacent to the bone lesion. A kit for conducting the method includes: (a) at least one reinforcing member having a proximal face adapted to face the joint, a distal face adapted to face away from the joint, and a wedge-shaped edge adapted to pierce bone, wherein the at least one reinforcing member is planar and sterile; and (b) a container adapted to maintain the at least one reinforcing member sterile. Another kit includes: (a) a sterile fluid; (b) a syringe for injecting the fluid into a bone; (c) a curing agent adapted to cure the fluid to polymerize and/or cross-link; and (d) a container adapted to maintain the sterility of contents of the container. | 04-17-2014 |
20140107796 | Hermetically Sealed Prosthetic Component and Method Therefor - A prosthetic component suitable for long-term implantation is provided. The prosthetic component measures a parameter of the muscular-skeletal system is disclosed. The prosthetic component comprises a first structure having at least one support surface, a second structure having at least one feature configured to couple to bone, and at least one sensor. The electronic circuitry and sensors are hermetically sealed within the prosthetic component. The sensor couples to the support surface of the first structure. The first and second structure are coupled together housing the at least one sensor. In one embodiment, the first and second structure are welded together forming the hermetic seal that isolates the at least one sensor from an external environment. The at least one sensor can be a pressure sensor for measuring load and position of load. | 04-17-2014 |
20140148911 | ANTIOXIDANT DOPING OF CROSSLINKED POLYMERS TO FORM NON-ELUTING BEARING COMPONENTS - Methods provide a non-eluting antioxidant doped UHMWPE in the form of an implant bearing component. The process includes the steps of: (a) providing a preform; (b) irradiating the preform with γ-irradiation to crosslink the UHMWPE; (c) doping the crosslinked preform by exposing it to an antioxidant composition at a temperature below the melting point of the UHMWPE; (d) removing the doped material from contact with the antioxidant composition; and then (e) annealing by heating the doped material at a temperature above 30° C. and below the melting point of the UHMWPE; followed by (f) making an implant bearing component from the doped material, wherein at least 1 mm but no more than about 15 mm of material are removed to make the component. | 05-29-2014 |
20140156016 | BICRUCIATE RETAINING TIBIAL BASEPLATE DESIGN AND METHOD OF IMPLANTATION - A base component for a tibial implant has a lateral compartment and a medial compartment spaced from the lateral compartment defining an open central section therebetween. A connecting portion connects the medial and lateral compartments at an anterior end of the base component which anterior end is located adjacent the anterior tibia. The open central section of the base component intermediate the spaced medial and lateral compartments is open to a posterior end of the base component. The medial and lateral compartments have a bone contacting surface and a superiorly facing surface. The connecting portion has a curved anteriorly facing surface and has a first angled surface extending at an angle from adjacent the anterior end of the base component at a bone contacting surface of the connecting portion superiorly to a posterior end of the connecting portion. The first angled surface defining an anterior end of the open central section. | 06-05-2014 |
20140172111 | SOLID FREEFORM FABRICATION OF IMPLANT COMPONENTS - Disclosed are designs, methods and systems for manufacturing implants, implant components, features of implant components, and/or related tools using solid freeform fabrication or additive metals technologies. | 06-19-2014 |
20140172112 | ATTACHMENT MECHANISM - An attachment mechanism, method of manufacture and method of use are described for releasably attaching a first component and a second component of an orthopaedic apparatus. The attachment mechanism comprises a boss extending from a surface of the first component, and having a free end and a side wall. A retaining mechanism is provided in the second component. The retaining mechanism comprises a plurality of walls defining an aperture in the second component to receive the boss therein. At least part of one of the plurality of walls is a resiliency flexible member engineered to apply sufficient force to a part of the side wall of the boss when inserted in the aperture to provide an interference fit between the boss and the plurality of walls of the aperture to releasably retain the boss within the aperture. | 06-19-2014 |
20140243990 | BICRUCIATE RETAINING TIBIAL IMPLANT SYSTEM - A bicruciate retaining tibial implant baseplate includes a tibial baseplate with medial and lateral condylar portions configured to receive bearing inserts. The baseplate includes an anterior bridge connecting the medial and lateral portions. A posterior wall of the anterior bridge may be angled to provide downward force on a correspondingly angled anterior portion of the tibial eminence when the baseplate is implanted. A method of preparing the tibia for implant includes a punch tower and punch guide configured to both cut the anterior tibial eminence and provide protection to the tibial eminence during resection of the proximal tibia. | 08-28-2014 |
20140257504 | IMPLANT SYSTEM WITH PE INSERT AND TWO TRAY OPTIONS - A tibial implant system has an ultra-high molecular weight polyethylene tibial insert which can engage with either one of two tibial trays through differing means of engagement. The tibial insert includes a locking wire and locking tab disposed along an anterior surface and a locking recess disposed along a posterior surface. A first polymeric tibial tray includes a bead along an anterior wall and an undercut area along a posterior wall. A second metallic tibial tray includes a plurality of barbs along an anterior wall and an undercut area along a posterior wall. | 09-11-2014 |
20140277538 | REVISION IMPLANT AUGMENTS, SYSTEMS, AND METHODS - In some embodiments, a surgical method includes creating an incision in a patient, exposing a multi-component prosthesis implanted in a patient, disassembling at least one component of the multi-component prosthesis, and coupling a first revision implant component to a first component of the multi-component prosthesis. The revision implant component has a body including at least one of a projection or an opening that is complementary to a feature of the first component of the multi-component prosthesis for coupling the revision implant component to the first component of the multi-component prosthesis. | 09-18-2014 |
20140277539 | ORTHOPAEDIC TIBIAL PROSTHESIS HAVING TIBIAL AUGMENTS - A tibial orthopaedic prosthesis assembly for use during performance of a knee replacement procedure includes one or more tibial augments configured to be coupled to a tibial tray. Each tibial augment includes an exterior side surface of varying angulation relative to a top surface of the tibial augment. | 09-18-2014 |
20140277540 | TIBIAL IMPACTION GUIDE SURGICAL INSTRUMENT AND METHOD OF USING SAME - An orthopaedic surgical instrument includes a cup including an outer surface having an opening positioned on a component-engaging side and an inner wall extending from the opening of the outer surface to a back wall. The inner wall having a plurality of stepped surfaces facing the component-engaging side. Each of the plurality of stepped surfaces is sized to receive a platform of a tibial tray. | 09-18-2014 |
20140277541 | SURGICAL INSTRUMENT AND METHOD OF SAME - A surgical instrument for use in an orthopaedic arthroplasty procedure includes a shaft having a first end and a second end and an impactor head disposed at the second end of the shaft. The impactor head includes first and second spaced ends, two spaced impaction surfaces disposed at the second end, and a cavity disposed between the impaction surfaces. The cavity is adapted to accommodate posterior-stabilizing spines of at least a first tibial implant component and a second tibial implant component having a size different than a size of the first tibial implant component. Each of the impaction surfaces includes a first section with a contour that conforms to a contour of a bearing surface of the first tibial implant component and a second section with a contour that conforms to a contour of a bearing surface of the second tibial implant component. | 09-18-2014 |
20140277542 | SYSTEM AND METHOD FOR MEASURING SLOPE OR TILT OF A BONE CUT ON THE MUSCULAR-SKELETAL SYSTEM - A system and method is disclosed herein for measuring bone slope or tilt of a prepared bone surface of the muscular-skeletal system. The system comprises a three-axis accelerometer for measuring position, rotation, and tilt. In one embodiment, the three-axis accelerometer can be housed in a prosthetic component that couples to a prepared bone surface. The system further includes a remote system for receiving, processing, and displaying quantitative measurements from one or more sensors. A bone is placed in extension. The three-axis accelerometer is referenced to a bone landmark of the bone when the bone is in extension. The three-axis accelerometer is then coupled to the prepared bone surface with the bone in extension. The slope or tilt of the bone surface is measured. In the example, the slope or tilt of the bone surface corresponds to at least one surface of the prosthetic component attached thereto. | 09-18-2014 |
20140277543 | SPRING-LOADED ADJUSTABLE JOINT SPACER/BEARING TRIAL SYSTEM - A joint spacer for an orthopedic procedure including a first plate, a second plate, a coupling device, and a spacer insert receiving portion. The first plate includes a first bone facing surface and a first inner surface. The second plate includes a second bone facing surface and a second inner surface facing the first inner surface. The coupling device couples the first plate and the second plate together. The spacer insert receiving portion of at least one of the first inner surface or the second inner surface is configured to receive at least one spacer insert between the first plate and the second plate to space the first plate and the second plate apart a distance corresponding to an optimal interval between bones of a joint. | 09-18-2014 |
20140277544 | SYSTEMS AND METHODS FOR JOINT REPAIR INCLUDING SUBCHONDRAL TREATMENT OF BONE - Systems and methods for the treatment of a joint are provided. These systems and methods may also include a subchondral treatment of bone of the same joint. These joint treatment methods may be non-surgical or surgical. Also provided are devices and instruments associated with the methods. | 09-18-2014 |
20140277545 | TIBIAL TUBEROSITY ADVANCEMENT IMPLANT - A tibial tuberosity advancement implant and method includes a spacer body made of biocompatible, biodegradable material and having a main section with at least one bony growth orifice therethrough and a proximal slot and at least one fin extending from the main section by at least one connector. A metal clip is slideable into the proximal slot of the spacer body main section and includes spaced screw holes for securing the spacer body to the advanced tibial tuberosity and the tibia when the implant is placed in the space between the advanced tibial tuberosity and the tibia. | 09-18-2014 |
20140296992 | SYSTEMS AND METHODS FOR PROVIDING AN ASYMMETRICAL TIBIAL COMPONENT - Systems and methods for providing deeper knee flexion capabilities. In some instances, such systems and methods include a tibial component that has an asymmetrical articular plateau that includes a medial tibial condylar surface and a lateral tibial condylar surface. In some cases, at least one of the medial condylar surface and the lateral condylar surface includes a concave articulation surface having a lowest point that disposed from a posterior edge of the tibial component by between about 18% and less than about 35% of a total anteroposterior dimension of the tibial component. Other implementations are also discussed. | 10-02-2014 |
20140309746 | MEDICAL IMPLANTS AND METHODS FOR DELIVERING BIOLOGICALLY ACTIVE AGENTS - Medical implants, such as orthopedic implants of the type used in partial or total joint replacement procedures, for example. The implants include a porous substrate, and a bearing portion of a polymeric material, for example, which is at least partially molded within the porous substrate. The bearing portion includes a bearing surface that is exposed to an articulating component of another medical implant, and the porous metal substrate contacts the bone for osseointegration of the bone tissue into the porous substrate to anchor the implant. The porous substrate may include biodegradable carrier materials, in the form of one or more layers, that carry biologically active agents such as antibiotics and bone growth factors, for example. The layers of biodegradable carrier materials may be tailored such that, after implantation of the implants, the biologically active agents are released sequentially and/or over time into the surrounding tissue to reduce the chances of infection and/or to promote osseointegration of the implant, for example. | 10-16-2014 |
20140324178 | CRUCIATE-RETAINING TIBIAL PROSTHESIS - A tibial prosthesis comprises a medial base portion configured to engage a medial surface of a tibia and a lateral base portion configured to engage a lateral surface of the tibia. At least a portion of the medial and lateral base portions are separated by a passage interposed therebetween. The tibial prosthesis also comprises a bridge coupling the medial base portion and the lateral base portion, wherein at least a portion of the bridge is elevated above a portion of the passage between the medial base portion and the lateral base portion. The bridge may define an underlying area that receives at least a portion of a tibial eminence when the tibial prosthesis is engaged with the tibia, wherein the height of the bridge varies in a superior direction across the passage. | 10-30-2014 |
20140324179 | ORTHOPEDIC INSERT SYSTEMS AND METHODS - Systems, devices, and methods are described for providing orthopedic knee inserts. The orthopedic knee inserts include a surface portion having a lip configured to couple with a mating member of a tibial component, where the lip has recesses that define non-continuous contact regions between the lip and the mating member of the tibial component. Alternatively, or additionally, in certain embodiments the mating member includes a shelf for mating with an insert, the mating member having a plurality of splines disposed along the shelf that form non-continuous contact regions between the mating member and the insert. | 10-30-2014 |
20140336773 | SYSTEMS AND METHODS FOR PROVIDING DEEPER KNEE FLEXION CAPABILITIES FOR KNEE PROSTHESIS PATIENTS - Systems and methods for providing deeper knee flexion capabilities, more physiologic load bearing and improved patellar tracking for knee prosthesis patients. Such systems and methods include (i) adding more articular surface to the antero-proximal posterior condyles of a femoral component, including methods to achieve that result, (ii) modifications to the internal geometry of the femoral component and the associated femoral bone cuts with methods of implantation, (iii) asymmetrical tibial components that have an unique articular surface that allows for deeper knee flexion than has previously been available, (iv) asymmetrical femoral condyles that result in more physiologic loading of the joint and improved patellar tracking and (v) modifying an articulation surface of the tibial component to include an articulation feature whereby the articulation pathway of the femoral component is directed or guided by articulation feature. | 11-13-2014 |
20140343681 | UNICONDYLAR TIBIAL KNEE IMPLANT - An implant providing for both short and long term stability and fixation is disclosed. The implant includes a plurality of projections extending from a bone contacting surface, and a porous material covering at least portions of the surface and projections. The orientation of the projections and the porous material provide for the stability and fixation. Methods of forming and utilizing the implant are also disclosed. | 11-20-2014 |
20140358242 | IMPLANT AUGMENT - An implant augment ( | 12-04-2014 |
20140371865 | POSTERIOR STABILIZED INSERT TRIAL WITH ADJUSTABLE POST - Trial joint inserts have posts at different positions relative to the base. During joint replacement surgery, a surgeon can test different positions for a post using a trial insert, identify a suitable position for the post, and then select a permanent insert with a post in the desired position. The devices and methods in this application allow a surgeon to provide an individualized joint replacement for a patient. Joint inserts may be configured so the post moves relative to the base. The post may be adjustably positionable, may lock in place, or may be actuated by a resistance member such as a spring. | 12-18-2014 |
20140371866 | TIBIAL IMPLANT DEVICES, SYSTEMS, AND METHODS - Various embodiments described herein can facilitate the design of patient-adapted (e.g., patient-specific or patient-engineered) tibial implants. Furthermore, various embodiments described herein can include implant components having one or more patient-adapted features and one or more standard, that is, not patient-adapted (e.g., off-the-shelf), features incorporated into the design of the tibial implant components, including the sizes of the tibial tray, the locking mechanism, the tibial tray cavities, and/or the tibial inserts. For example, in various embodiments, the size of the tibial tray may be designed as patient-adapted by incorporating patient-adapted measurements into the perimeter of the tibial component. | 12-18-2014 |
20150012106 | ORTHOPAEDIC IMPLANT SYSTEM AND FASTENERS FOR USE THEREIN - Orthopaedic assemblies including a tibial component and one of a fixed tibial insert or a rotatable tibial insert. The assemblies may include structure to prevent undesired movement between the tibial component and insert. For example, a retaining tab may be provided on the tibial component that couples to a tab opening on a surface of the tibial insert (either the fixed or rotatable insert). When assembled, the retaining tab may be covered to avoid possible irritation to the patient's surrounding anatomy. The fixed tibial insert may be provided with a tab opening that provides a minimal amount clearance with the retaining tab to help prevent rotation of the fixed tibial insert. The rotatable tibial insert may be provided with a tab opening with more clearance with the retaining tab to allow at least some rotation with the tibial component. | 01-08-2015 |
20150032217 | Patient-Adapted and Improved Orthopedic Implants, Designs and Related Tools - Methods and devices are disclosed relating improved articular models, implant components, and related guide tools and procedures. In addition, methods and devices are disclosed relating articular models, implant components, and/or related guide tools and procedures that include one or more features derived from patient-data, for example, images of the patient's joint. The data can be used to create a model for analyzing a patient's joint and to devise and evaluate a course of corrective action. The data also can be used to create patient-adapted implant components and related tools and procedures. | 01-29-2015 |
20150057758 | INTRAOPERATIVE DYNAMIC TRIALING - A dynamic trialing method generally allows a surgeon to perform a preliminary bone resection on the distal femur according to a curved or planar resection profile. With the curved resection profile, the distal-posterior femoral condyles may act as a femoral trial component after the preliminary bone resection. This may eliminate the need for a separate femoral trial component, reducing the cost and complexity of surgery. With the planar resection profile, shims or skid-like inserts that correlate to the distal-posterior condyles of the final insert may be attached to the distal femur after the preliminary bone resection to facilitate intraoperative trialing. The method and related components may also provide the ability of a surgeon to perform iterative intraoperative kinematic analysis and gap balancing, providing the surgeon the ability to perform necessary ligament and/or other soft tissue releases and fine tune the final implant positions based on data acquired during the surgery. | 02-26-2015 |
20150057759 | MEDIAL TIBIAL PLATEAU REALIGNMENT PROCEDURE FOR MEDIAL OSTEOARTHRITIS OF THE KNEE - A method and apparatus for correcting varus deformity comprises cutting a horizontal slot in the upper medial portion of the tibia. The slot is opened by the application of external force and a wedge is inserted to maintain the opening. The opening of the slot corrects the position and orientation of the deformed medial plateau. | 02-26-2015 |
20150057760 | TIBIAL TUBEROSITY ADVANCEMENT IMPLANT - A tibial tuberosity advancement implant and method includes a spacer body made of biocompatible, biodegradable material and having a main section with at least one bony growth orifice therethrough and at least one fin extending from the main section by at least one connector. A metal clip is engageable with of the spacer body main section and includes spaced screw holes for securing the spacer body to the advanced tibial tuberosity and the tibia when the implant is placed in the space between the advanced tibial tuberosity and the tibia. | 02-26-2015 |
20150066150 | METHOD FOR OPTIMIZING IMPLANT DESIGNS - Methods are disclosed for designing a tibial implant to minimize cortical impingement of a keel or other fixation structure when the tibial implant is implanted in the tibia bone. The design of the keel or other fixation structure on the tibial baseplate can be based on determining a common area between defined cancellous regions of at least two tibia bones. Methods are disclosed for designing a femoral component having a stem extension such that the stem can be sufficiently placed in the diaphysis of the femur when the femoral component is implanted. The method includes determining a canal axis in a femur that creates adequate engagement between a reamer and the diaphysis of the femur. | 03-05-2015 |
20150081029 | Advanced Methods, Techniques, Devices, and Systems for Cruciate Retaining Knee Implants - Improved implants, systems, tools and related methods for bi-cruciate retaining joint treatment are disclosed, including patient-adapted implants, systems, tools, and methods. | 03-19-2015 |
20150081030 | STABILIZING PROSTHESIS SUPPORT STRUCTURE - A tibial support structure includes a platform portion and a medullary portion that are monolithically formed as a single piece. The medullary and platform portions of the augment component are adapted to accommodate and mechanically attach to a tibial baseplate, and are individually shaped and sized to replace damaged bone stock both within the tibia, as well at the tibial proximal surface. The monolithic formation of the tibial support structure provides a strong and stable foundation for a tibial baseplate and facilitates restoration of the anatomic joint line, even where substantial resections of the proximal tibia have been made. The tibial support structure may be made of a bone-ingrowth material which facilitates preservation and rebuilding of the proximal tibia after implantation, while also preserving the restored joint line by allowing revision surgeries to be performed without removal of the tibial support structure. | 03-19-2015 |
20150088264 | Implant for Restoring Normal Range Flexion and Kinematics of the Knee - Embodiments of the invention provide knee prostheses which more faithfully and closely replicate the function, anatomy and physiology of the normal human knee yielding a number of advantages. Among other things, such prostheses can provide an increased range of motion and function more normally particularly in extension, deep flexion and during normal gait. Knee prostheses according to various aspects of the invention recognize that during movement of the knee, particularly during flexion, the kinematics of the bones of the knee are a result of achieving equilibrium of the forces that cause motion of the knee. In addition, the shape of the articular surfaces acting in combination with forces imposed by various muscles, ligaments and tendons, determines the direction of the large contact forces. | 03-26-2015 |
20150088265 | CRUCIATE-RETAINING KNEE PROSTHESIS - Certain embodiments generally provide an improved tibial base member comprising keel portions that allow one or both cruciate ligaments to be preserved. Other embodiments provide improved lateral and/or medial inserts having a mesial lip that helps relieve and/or prevent impingement between the femoral component and the tibial eminence. Other embodiments provide improved femoral components having various chamfers to provide additional clearance with respect to the tibial eminence and posterior cruciate ligament without decreasing bone coverage. | 03-26-2015 |
20150134069 | TIBIAL PROSTHETIC COMPONENT FOR A PARTIAL OR UNICONDYLAR BEARING KNEE REPLACEMENT, METHOD OF SELECTING SUCH A TIBIAL PROSTHETIC COMPONENT, METHOD OF IMPLANTING SUCH A TIBIAL PROSTHETIC COMPONENT AND A KIT FOR A SURGEON - The invention concerns a tibial prosthetic component comprising a plate ( | 05-14-2015 |
20150134070 | SURGICAL INSTRUMENTS AND METHOD FOR USE IN SURGICALLY PREPARING A TIBIA FOR IMPLANTATION OF A PROSTHETIC COMPONENT - Orthopaedic surgical instruments including a base trial adapted to be positioned on a proximal end of a patient's resected tibia, and a guide tower including a tower base adapted to be positioned on the base trial. A method of use is also described. | 05-14-2015 |
20150142123 | Knee Component Having Orbital Interface Boss - A knee prosthesis including a knee component and an indexing boss. The knee component includes a first engagement portion. The indexing boss includes a first terminal end surface, a second terminal end surface, and a second engagement portion at the second terminal end surface. The first terminal end surface and the second terminal end surface are arranged along non-parallel planes. The first and the second engagement portions are configured to selectively couple together at a plurality of rotational orientations to attain a corresponding plurality of angular orientations of the indexing boss relative to the knee component due to the first and the second terminal end surfaces being arranged along non-parallel planes. | 05-21-2015 |
20150297350 | ANATOMICALLY ADAPTED ORTHOPEDIC IMPLANT AND METHOD OF MANUFACTURING SAME - An orthopedic implant to cover at least partially a surface of a bone of a patient. The orthopedic implant comprises a body having at least one retaining section, a bone-facing surface, and an articular surface. The at least one retaining section is configured to retain the orthopedic implant on the surface of the patient's bone along at least one axis by covering a corresponding retaining surface thereof. The bone-facing surface of at least one of the at least one retaining section nestingly conforms to an unresected portion of the surface of the bone of the patient. A method for conceiving and implanting an orthopedic implant is also provided. | 10-22-2015 |
20150297353 | MODULAR KNEE IMPLANTS - An implant for bone re-surfacing in a joint, the implant having a bearing platform having a front surface which forms a bearing surface and a back surface, and securing apparatus projecting from the back surface, the securing apparatus having a locking surface arranged to bear against an undercut surface of the bone to secure the implant against the bone. | 10-22-2015 |
20150313715 | PROSTHESIS WITH SURFACES HAVING DIFFERENT TEXTURES AND METHOD OF MAKING THE PROSTHESIS - A joint prosthesis system is suitable for cementless fixation. The system has two metal implant components and a bearing. One of the metal implant components has an articulation surface for articulation with the bearing. The other metal implant component has a mounting surface for supporting the bearing. One of the metal implant components includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augments. | 11-05-2015 |
20150313727 | TIBIAL TRIAL SYSTEM FOR A KNEE PROSTHESIS - An orthopaedic surgical instrument system for use during a surgical procedure to implant an orthopaedic knee prosthesis includes a tibial base trial component adapted to be positioned on a surgically-prepared proximal end of a patient's tibia and an insert component shaped to be received in an opening defined in the tibial base trial component. The insert component has a base plate and a central post extending upwardly from a superior surface of the base plate. A superior surface of the central post has a ramp surface defined therein, with the ramp surface inclining superiorly in the anterior-to-posterior direction. | 11-05-2015 |
20150320564 | MOTION FACILITATING TIBIAL COMPONENTS FOR A KNEE PROSTHESIS - An orthopaedic tibial prosthesis includes a tibial baseplate sized and shaped to cover substantially all of a resected proximal tibial surface, and a tibial bearing component sized to leave a posteromedial portion of the tibial baseplate exposed when the tibial bearing component is mounted to the baseplate. The exposed posteromedial portion of the tibial baseplate includes a chamfered profile which cooperates with a correspondingly chamfered profile at a posteromedial edge of the tibial bearing component to create a substantially continuous chamfer extending from the resected tibial surface to the medial articular surface of the tibial bearing component. Advantageously, this chamfer leaves an absence of material (i.e., a relief or void) at the posteromedial edge of the tibial prosthesis, thereby enabling deep flexion of the prosthesis without impingement between the tibial prosthesis and adjacent anatomic tissues or prosthetic structures. | 11-12-2015 |
20150320565 | TIBIAL BASEPLATES FOR SPECIAL PATIENT POPULATIONS - A family of tibial baseplates can comprise a plurality of tibial baseplates. Each of the plurality of tibial baseplates can define a common nominal baseplate size and a unique, non-congruent tibial baseplate periphery as compared to the other tibial baseplates of the family of tibial baseplates. | 11-12-2015 |
20150335438 | PATIENT-SPECIFIC AUGMENTS - A patient-specific augment can be attached to an implant component for a bone of a joint of a patient. The patient-specific augment has first and second surfaces. The first surface is a three-dimensional patient-specific surface that closely matches and can mate to a substantially unaltered and unresected surface of a bone defect of the specific patient only in one position. The second surface is designed to engage a non-custom surface of the implant. | 11-26-2015 |
20150335439 | Cage Assembly for Tibial Tuberosity Advancement Procedure - A cage assembly for implanting between and securing together two portions of bone in a tibial tuberosity advancement includes an elongated cage body having a first end and a second end, and a securing member. The first end of the cage body and the securing member are engagable with each other so as to interlock in a manner that prevents the securing member from moving longitudinally away from the cage body. The securing member is arrangable, when interlocked with the cage body, such that it has a portion which extends laterally outwards beyond each opposing side of the cage body for use in attaching the securing member to the portions of bone. Different sizes of securing member may be engaged with the cage body. The cage assembly therefore provides a convenient and flexible approach to tibial tuberosity advancement procedures. | 11-26-2015 |
20150342741 | STEPPED TIBIAL BASEPLATE - Disclosed herein are tibial baseplates having a medial portion and a lateral portion, each of the medial and lateral portions having a proximal surface and a distal surface opposite the proximal surface. An intermediate portion joins the medial and lateral portions, wherein the intermediate portion has a proximal surface angled to the proximal surfaces of the medial and lateral portions about a longitudinal axis of the tibial baseplate. The proximal surface of the medial portion is stepped from the proximal surface of the lateral portion about the longitudinal axis. The proximal surfaces of the medial and lateral portions are configured to receive corresponding medial and lateral inserts. | 12-03-2015 |
20150342742 | TIBIAL BASE PLATE AND METHOD FOR ATTACHING A TIBIAL BASE PLATE ON A TIBIA - A tibial base plate for attaching to a resected surface at a proximal end of a tibia is provided. The tibial base plate includes a bridge, a pair of compartments and a stem. The bridge has a first contact surface sitting on the resected surface. The compartments are disposed at opposite sides of the bridge and extend in an anterior-posterior direction to form a notch to accommodate a tibial eminence. Each of the compartments has a second contact surface sitting on the resected surface. The stem is connected to the bridge and the compartments and inset into the proximal end of the tibia. The stem has an outer surface. The outer surface is canted towards the notch as insetting into the proximal end of the tibia. The stem is engaged with a cutting slot on the resected surface into the proximal end of the tibia. | 12-03-2015 |
20150351859 | MORPHOLOGICALLY CURVED SAGITTAL WALL OF A TIBIAL IMPLANT - Disclosed herein are methods of designing and fabricating prosthetic implants having a sagittal wall in which at least a portion thereof traverses a non-linear path. A method of fabricating such a prosthetic implant may include generating a virtual bone model based on image information obtained from at least one bone, determining a proposed height of the prosthetic implant at a first location on the virtual bone model, determining a proposed resection depth into the at least one bone at the first location based at least in part on the proposed height of the prosthetic implant, and determining a curved resection path across a portion of the virtual bone model. The curved resection path may intersect the first location and the prosthetic implant may have a curved sagittal wall corresponding to the curved resection path. | 12-10-2015 |
20150359642 | TIBIAL PROSTHESIS SYSTEMS, KITS, AND METHODS - Tibial prosthesis systems for implantation or use in a knee joint are disclosed. A tibial prosthesis system can include a bearing component, a base component, a shim component, and optionally a spacer component. The shim or spacer component can be inserted between an inferior surface of the bearing component and a superior surface of the base component. The insertion of the shim or spacer component can provide spacing adjustment between the bearing and base components. The shim component can include one or both of a medial edge having a different height than a lateral edge or an anterior edge having a different height than a posterior edge. The differing edge height of the shim component can provide a surgeon with knee joint kinematic insight regarding an angled bone cut before the cut is made, and can allow for sizing of an appropriately permanent prosthesis system using a reduced number of provisional components. | 12-17-2015 |
20160000571 | ETHNIC-SPECIFIC ORTHOPAEDIC IMPLANTS AND CUSTOM CUTTING JIGS - An orthopedic implant comprising: (a) a distal femoral component comprising a first condyle bearing surface having a first profile comprising at least three consecutive arcs of curvature; and (b) a proximal tibial component comprising a first condyle bearing surface having a second profile comprising at least three parallel arcs of curvature. | 01-07-2016 |
20160045321 | Spacers for Redistributing Forces for the Patella - Implant apparatus and methods directed toward treating conditions involving the knee joint and the patella specifically are disclosed. Full range of motion of the knee joint and tissue integrity are maintained in treatment approaches involving implanting a joint surface load reducing implant proximate the joint to change the direction of the tendons or muscles exerting forces on the joints. | 02-18-2016 |
20160045322 | TIBIAL BEARING COMPONENT FOR A KNEE PROSTHESIS WITH IMPROVED ARTICULAR CHARACTERISTICS - An orthopaedic knee prosthesis includes a tibial bearing component with surface features which operate to protect adjacent soft tissues of the natural knee throughout a wide range of flexion. More particularly, the tibial bearing component provides an anterior relief space disposed between the dished lateral and medial articular compartments, in which the relief space is convex as viewed from a sagittal perspective across the medial/lateral extent of the relief space. | 02-18-2016 |
20160067048 | IMPLANT WITH PATIENT-SPECIFIC POROUS STRUCTURE - A method of manufacturing a joint implant for a joint of a specific patient includes obtaining a three-dimensional image of a bone of the joint of the specific patient from medical imaging scans of the bone of the patient and determining on the three-dimensional image a resection plane for contacting a corresponding planar surface of the joint implant for the specific patient. The method includes determining a three-dimensional image of a porous structure of a bone layer along the resection plane from the medical imaging scans of the patient. The joint implant is manufactured with a layer of a patient-specific porous construct attached to the planar surface of the joint implant. The layer of the patient-specific porous construct substantially replicates the porous structure of the bone layer of the specific patient. | 03-10-2016 |
20160106541 | Prosthesis Component With Antimicrobially Coating Sliding Surface - In a prosthesis component of a joint endoprosthesis, the prosthesis component comprises a sliding surface that is designed to form a sliding joint with a counter sliding surface of another prosthesis component. The sliding surface may be formed by a sliding surface coating deposited on the body of the prosthesis component, wherein the sliding surface coating has an antimicrobial effect. The sliding surface coating is active against microorganisms in the area of the sliding joint. | 04-21-2016 |
20160158019 | TIBIAL BASEPLATE WITH ASYMMETRIC PLACEMENT OF FIXATION STRUCTURES - An orthopaedic knee prosthesis is provided including a tibial baseplate component having a distal, bone-contacting surface with one or more fixation structures extending distally therefrom, in which the fixation structures are asymmetrically arranged within the baseplate periphery. | 06-09-2016 |
20160250029 | Gender Specific Implant and Packaging | 09-01-2016 |
20170231783 | Solid Freeform Fabrication of Implant Components | 08-17-2017 |
20180021143 | MOTION FACILITATING TIBIAL COMPONENTS FOR A KNEE PROSTHESIS | 01-25-2018 |
20180021144 | TIBIAL BEARING COMPONENT FOR A KNEE PROSTHESIS WITH IMPROVED ARTICULAR CHARACTERISTICS | 01-25-2018 |