Disclosed is a wrist prosthesis, and methods for implanting same, the prosthesis comprising an elongated radial component having two opposite sides, the first side comprising a stem and the second side comprising a concave dish; an elongated carpal component having two opposite sides, the first side comprising a stem, and the second side comprising a ball end; a lunate component having two opposite sides, the first side comprising a cavity adapted to receive said carpal component's ball end, and the second side comprising a convex surface adapted to engage said radial component's concave dish; wherein said lunate component freely rotates and swivels with respect to both of said carpal and radial components; wherein said stem of said carpal component is adapted for rigid engagement with one or more carpal and/or metatarsal bones; and wherein said stem of said radial component is adapted for rigid engagement with a radius bone.

A knee replacement prosthesis comprising a femoral component and a tibial component that enable anterior-posterior translation of the femur relative to the tibia and enable the tibia to rotate about its longitudinal axis during flexion of the knee. The femoral component connects to the distal end of a resected femur and includes medial and lateral condyles having distal, articulating surfaces, and a patellar flange having a patellar articulating surface. The tibial component connects to the proximal end of a resected tibia and includes a proximal bearing surface with medial and lateral concavities that articulate with the medial and lateral condyles. The condylar articulating surfaces and the said concavities are substantially defined by non-uniform, rational B-spline surfaces (NURBS).

A bone graft delivery kit includes a hollow tube having a proximal end and a distal end. The hollow tube is configured to convey graft material to a graft receiving area in a patient. The hollow tube can be connected to an implant. The kit further includes a plunger to facilitate moving the graft material through the hollow tube.

A spinal fusion implant includes a leading end, an opposite trailing end, an upper portion extending between the leading and trailing ends, a lower portion extending between the leading and trailing ends, and opposed first and second side portions extending between the leading and trailing ends. The upper portion includes at least two rails extending between the leading and trailing ends, the at least two rails including a first rail and a second rail spaced apart from one another, the first rail of the upper portion including a bone-contacting surface being at least partially smoothened. The lower portion includes at least two rails extending between the leading and trailing ends, the at least two rails including a first rail and a second rail spaced apart from one another, the first rail of the lower portion including a bone-contacting surface being at least partially smoothened.

A system is provided which includes an articulating component, a post, a reception member and a bone engaging member. The articulating component includes an articulating surface and a second surface opposite the articulating surface. The post is disposed below the second surface. The reception member is configured to receive the post. The bone engaging member is configured to be embedded in a bone, wherein the bone engaging member is configured to receive the reception member. The reception member includes a reception member inside surface, wherein the reception member inside surface faces the post when the post is received by the reception member. A first portion of the reception member inside surface defines a tapered configuration and the reception member inside surface comprises at least one ratchet interface.

An intervertebral disc prosthesis designed to be substituted for fibrocartilaginous discs ensures a connection between the vertebra of the vertebra column or the end of the latter. The prosthesis includes a pair of plates spaced from each other by a nucleus. The prosthesis has increased stability by providing the nucleus with a translation or rotation stop, or by inducing an angular correction between its plates contacting vertebra, or a combination of these characteristics. The stop includes parts external to the nucleus and contact surfaces perpendicular to their contact directions. Surgical methods and instrumentation for implanting the prosthesis are also described.

A component of an artificial joint according to an exemplary aspect of the present disclosure includes, inter alia, a base plate and a post selectively removable from the base plate. Further, an outer surface of the post includes a layer of the bone ingrowth material along substantially the entire length of the post.

A prosthetic glenoid implant may include a polymer bearing component, a metal base component, and a plurality of fixation members. The bearing component may have a first surface adapted to articulate with a humeral head, and an opposing second surface including a first mating feature. The base component may have a first surface and a bone-contacting surface, the first surface having a second mating feature adapted to engage the first mating feature, the bone-contacting surface adapted to contact the native glenoid. The base component may define a plurality of apertures. The fixation members may each have a head and a threaded shaft adapted to pass through a corresponding one of the plurality of apertures, the head of each fixation member adapted to be positioned within a recess defined between the base component and the bearing component in an assembled condition of the prosthetic glenoid implant.

A tibial tray component includes a tibial tray portion with a post portion protruding from a bone-contacting side of the tibial tray portion. The tibial tray portion may include ribs extending along the bone-facing side in areas of high stress during the gait cycle. The post portion may include at least one fin projecting outwardly from the post portion and extending along a portion of the length of the post portion. A cut block assembly includes a cut block and at least one pin. The cut block may include several mounting locations for the pin. The pin may include an anti-rotation portion and a tapered free end.

The present invention provides a method for stabilizing a fractured bone. The method includes positioning an elongate rod in the medullary canal of the fractured bone and forming a passageway through the cortex of the bone. The passageway extends from the exterior surface of the bone to the medullary canal of the bone. The method also includes creating a bonding region on the elongate rod. The bonding region is generally aligned with the passageway of the cortex. Furthermore, the method includes positioning a fastener in the passageway of the cortex and on the bonding region of the elongate rod and thermally bonding the fastener to the bonding region of the elongate rod while the fastener is positioned in the passageway of the cortex.