Patent ID: 8105390

Claim:
A prosthesis for placement relative to a carpal complex of a wrist, the prosthesis comprising: a carpal implant having a body including an ulnar flange and a radial flange, the body having a bone abutment surface formed at least partially by the ulnar and radial flanges, the body further comprising at least one dorsal flange extending from the bone abutment surface, the at least one dorsal flange extending from the bone abutment surface a distance that is configured to span at least one bone of the carpal complex in an implanted position, the at least one dorsal flange having a securing aperture that is configured to selectively receive a bone screw that advances into an identified bone of the carpal complex, the at least one dorsal flange having a bone engaging face and an opposite non-bone engaging face, the bone engaging face configured to be positioned against a posterior surface of corresponding bones of the carpal complex while the ulnar and radial flanges are positioned against bones of the carpal complex; and a wrist bearing component that selectively mates to the carpal implant; wherein the at least one dorsal flange comprises a first dorsal flange extending from an edge of the ulnar flange and a second dorsal flange extending from an edge of the radial flange, the first and second dorsal flanges extending as an L-shaped profile and being unitarily formed with the respective ulnar and radial flanges.