The present disclosure relates to a tibial component for an endoprosthetic knee implant comprising a tibial baseplate and a keel extending from a lower surface of the tibial baseplate. The tibial baseplate is disposed at a keel posterior angle relative to the keel, and the tibial baseplate is also disposed at a keel varus angle relative to the keel. The disclosure further describes modular keel embodiments, exemplary instruments that can be used to implant exemplary tibial components into and onto the proximal tibia, methods related thereto, and kits therefore.

A distractible intervertebral implant configured to be inserted in an insertion direction into an intervertebral space that is defined between a first vertebral body and a second vertebral body is disclosed. The implant may include a first body and a second body. The first body may define an outer surface that is configured to engage the first vertebral body, and an opposing inner surface that defines a rail. The second body may define an outer surface that is configured to engage the second vertebral body, and an inner surface that defines a recess configured to receive the rail of the first body. The second body moves in a vertical direction toward the second vertebral body as the second body is slid over the first body and the rail is received in the recess.

According to some embodiments, a method of inserting a lateral implant within an intervertebral space defined between an upper vertebral member and a lower vertebral member includes creating a lateral passage through a subject in order to provide minimally invasive access to the intervertebral space, at least partially clearing out native tissue of the subject within and/or near the intervertebral space, positioning a base plate within the intervertebral space, wherein the base plate comprise an upper base plate and a lower base plate and advancing an implant between the upper base plate and the lower base plate so that the implant is urged into the intervertebral space and the upper vertebral member is distracted relative to the lower vertebral member.

An orthopaedic joint replacement system is shown and described. The system includes a number of prosthetic components configured to be implanted into a patient's knee. The system also includes a number of surgical instruments configured for use in preparing the bones of the patient's knee to receive the implants. A method or technique for using the surgical instruments to prepare the bones is also disclosed.

A spinal implant apparatus that is an expandable spacer including features to minimize or eliminate spacer cant or offset during and after completing the expansion process. The spacer includes a top component, a base component in engagement with the top component, and an expansion mechanism arranged to change the top component's position with respect to the base component. The mechanism for causing expansion may be a screw, a cam, a wedge or other form of distracting device. In one embodiment, the expandable spacer includes a base component with a set of towers and a top component with a set of corresponding silos, where the towers and silos are configured to minimize or eliminate tilt of the top component as it extends upwardly from the base component.

A coupling system between the parts in a prosthesis for the articulation of the shoulder comprising a metal support (11), a pin element (12), a cylindrical bush (20) and a glenosphere or hemispherical element (22) which are consecutively coupled in the sequence listed above, in addition to reciprocal constraint elements, wherein said metal support (11) and said pin element (12) are constrained with an interposed conical coupling (13,14), said pin element (12) provides a central pass-through hole and externally, at one end opposite to that of coupling with the metal support (11), it has a cylindrical section (15) with a knurled surface, said pin element (12) provides that said pass-through hole comprises a threaded portion (17), said cylindrical bush (20) is externally provided with a threading (21) complementary to the threaded section (17) of the pin element (12), said glenosphere or hemispherical element (22) comprises an axial pass-through hole (24) which on one side has an internal seat (23) with an enlarged diameter provided with knurling complementary to the section (15) with a knurled surface of the pin element (12), said reciprocal constraint elements comprising at least one safety screw (23, 123).

Shoulder arthroplasty systems and configurations for components thereof are described. For example, implant systems for a total should arthroplasty (TSA), hemi shoulder arthroplasty, and reverse should arthroplasty (RSA) are described. In addition, exemplary configurations for baseplates, glenoid components, glenosphere components, humeral components, humeral head components, humerosocket components, connectors, and adaptors, are described.

A reverse shoulder replacement system including a humeral liner defining a split curvature bearing surface that includes a plurality of curvature regions. The plurality of curvature regions are configured to engage a glenosphere of a glenoid implant individually or in combination to provide an improved fit between the glenosphere and the humeral liner.

A fusion cage has a first component that defines an outside surface that is configured to engage a vertebral endplate, and an interior surface. The fusion cage has a second component that defines first and second opposed surfaces. One of the first and second opposed surfaces can mate with the interior surface of the first component. The fusion cage can include vertical and lateral throughholes adapted to enhance fusion.

A hybrid spinal implant for performing an intervertebral fusion procedure can include a pair of spacers separated by an expandable container that are formed of a porous titanium scaffold material. A connecting rod can span longitudinally between the pair of spacers. The spacers can be formed of titanium or PEEK, with endplates that are formed of the porous titanium scaffold material. The endplates can be bioactive. Exposed surfaces of the porous titanium scaffold material can be coated in a snag-preventing substance. The expandable container can be formed of a mesh material.