A wrist prosthesis has first, second, and third components that in one form are a radial component, a metacarpal component, and a bearing component. The bearing component is non-fixed or non-stationary relative to one of the radial component and the metacarpal component when the wrist prosthesis is assembled...http://www.google.ca/patents/US20060030946?utm_source=gb-gplus-sharePatent US20060030946 - Wrist prosthesis
