Wrist implants and methods

摘要

Wrists implants and methods are disclosed. A wrist implant can advantageously allow motion with respect to a reconstructed wrist to more closely resemble natural motion. For example, in one aspect, motion can include movement in more than one direction to allow for flexion/extension, rotational, and translational movement. The wrist implant can include a radial implant component and/or a carpal implant component with a bearing component or member disposed therebetween. The radial implant can have a radial articulation surface having at least one variable radius of curvature and/or a tray having a variable width.

主权项

1. A prosthetic wrist implant comprising:
a radial implant component comprising a tray having a distal bearing surface and a proximal surface having an elongated radial stem extending therefrom adapted for attachment to a radius bone, the tray comprising radial and ulnar sides and volar and dorsal sides; and wherein the distal bearing surface of the radial implant component comprises a flexion/extension radius of curvature that increases along the radial/ulnar direction.