Patent ID: 8105388

Claim:
A wrist prosthesis to replace at least a portion of a bone forming a portion of a wrist of a patient, comprising: a stem member extending between a first end and a second end wherein the second end is operable to extend into a radius of the patient; and an articulation assembly operable to be interconnected with the stem member to replace a resected portion of the radius, including: an articulation portion operable to articulate with a carpal bearing portion, said articulation portion defining a transverse elongated coupling depression; a stem connection portion formed near the articulation portion to interconnect with the first end of the stem member to be held relative to the bone; a bone replacement member operable to be positioned between the stem member and the articulation portion; and a connection portion operable to interconnect the bone replacement member and the articulation portion, the bone replacement member defining a bore annularly disposed about the stem connection portion and having a transverse elongated projection configured to lockably engage with the transverse elongated coupling depression; wherein the articulation portion is operable to form the articulation assembly with the bone replacement member.