Patent ID: 8535382

Claim:
A prosthesis system for replacement of a head portion of a proximal radius, comprising: a first polymeric articulation component having a first locking portion and a first connection portion having a first locking channel; a metal head component having a second locking portion that mates with the first locking portion to form a first locking mechanism to initially couple the first articulation component to the head component, and a third locking portion having a second locking channel, the second locking channel being aligned with the first locking channel when the first articulation component is coupled to the head component, the head component including a bore that receives the first connection portion and is formed adjacent to the second locking channel to allow the first locking channel to be aligned and in communication with the second locking channel when the first connection portion is received within the bore; a stem component having a fourth locking portion couplable to the third locking portion, the stem component adapted to be coupled to the radius; and a fastener received through the third locking portion and the fourth locking portion to provide a second locking mechanism that couples the head component to the stem component.