A prosthesis and method for a ball and socket joint. The prosthesis
includes a first component including an anchoring shank and a metaphyseal
portion. The metaphyseal portion includes a first articular surface
configured to move in translation relative to the anchoring shank. An
intermediate component includes a first articular surface configured to
engage with the first articular surface on the metaphyseal portion, and a
second articular surface configured to engage with the ball and socket
joint.