Provided herein are biomimetic osteochondral implants that are generally useful for the at least partial resurfacing of damaged cartilage within a joint. The implants are constructed to have a modular, layered structure in which the physical properties (e.g., stiffness and lubricity) or dimensions of each layer can be adjusted (e.g., by using the appropriate material and controlling the thickness thereof) based on the anatomy to be replaced. For example, the material and or thicknesses of the layers can be selected to approximate the physical properties and/or dimensions of cartilage (and, optionally, chondral and subchondral bone). Also provided herein are methods of treatment involving the use of said biomimetic osteochondral implants to repair an osteochondral defect in a joint.

This invention improves upon prior art total disc replacements (TDRs) by more closely replicating the kinematics of a natural disc. The preferred embodiments feature two or more fixed centers of rotation (CORs) and an optional variable COR (VCOR) as the artificial disk replacement (ADR) translates from a fixed posterior COR that lies posterior to the COR of the TDR to facilitate normal disc motion. The use of two or more CORs allows more flexion and more extension than permitted by the facet joints and the artificial facet (AF). AF joint-like components may also be incorporated into the design to restrict excessive translation, rotation, and/or lateral bending.

A set of distal femoral knee prostheses which are designed to be more narrow in medial/lateral dimensions with increasing anterior/posterior size than existing prostheses to more closely correspond to the physical anatomy of female patients. The prostheses are designed to have a substantially trapezoidal shape or profile when viewed distally which features a more pronounced narrowing of the medial/lateral dimensions beginning at the posterior end of the prostheses and progressing anteriorly to the anterior end of the prostheses. Additionally, the prostheses each include a reduced profile patellar sulcus and reduced profile anterior condyles to more closely conform to the anatomy of a resected femur, and also include sulcus tracking optimized to conform to female anatomy.

A device for covering and/or reconstructing a bone defect site includes a cap (molded shell, rigid shell, molded body) having a rim and at least one fixing device for fixing the cap on a bone. The cap has a dimensionally stable (rigid) nature. A wall of the cap facing the bone defect or a wall of the cap facing away from the bone defect corresponds to the shape of the regenerated bone, at least one positioning device being located on the rim of the cap. A method produces a cap for a covering device for a bone defect site.

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.

A graft includes a biological graft. An embroidered textile supports the biological graft. Sutures attach the biological graft and the embroidered textile together.

An expandable spacer, comprising: an axial tube having a surface, a proximal end and a distal end and a length, wherein, said surface defines a plurality of slits, said plurality of slits defining at least two axially displaced extensions, such that when said tube is axially compressed, said extensions extend out of said surface and define a geometry of an expanded spacer. Preferably the spacer is adapted to be inserted between two spinal vertebrae of a human.

A tibial implant having a stem and a tibial sleeve. The tibial sleeve having a proximal end and a distal end, where the proximal end includes an annular male portion. The tibial implant also includes an offset ring having a central bore that is offset from the center of the offset ring, where the bore of the offset ring receives the annular male portion of the tibial sleeve. The tibial implant further includes a base plate having a proximal end and a distal end, where the distal end of the base plate forms a female portion, and the female portion receives both the offset ring and the male portion of the tibial sleeve.

A tibial trial insert system includes a bearing having a superior articulating surface and an inferior surface; a plate having a superior surface and an inferior fixation surface; a first adjustment assembly and a second adjustment assembly, each adjustment assembly arrangeable between the inferior surface of the bearing and the superior surface of the plate, and each adjustment assembly having a superior connector to engage the bearing and an inferior base to engage the plate. A plurality of shims are slidable between an inferior surface of the connector and a superior surface of the base of the first and/or second adjustment assembly to adjust a proximal/distal height of the respective adjustment assembly to adjust a proximal/distal spacing between the bearing and the plate. The first adjustment assembly allows adjustment of the spacing within a first range. The second adjustment assembly allows adjustment of the spacing within a second range.

In one embodiment, a glenoid implant includes a body and a flange. The body includes a bearing surface and a bone-contacting surface opposite the bearing surface. The flange extends from the bone-contacting surface of the body to a free end. The flange has an inside facing surface that faces a center of the body and an outside facing surface that faces an outer perimeter of the body. The outside facing surface is opposite the inside facing surface and each of the inside and outside facing surfaces extend from the bone-contacting surface to the free end. The outside facing surface at the bone-contacting surface of the body is 8 mm or less from the outer perimeter of the body. The outside facing surface is tapered from the bone-contacting surface toward the free end. The inside facing surface is non-parallel to the outside facing surface.