Patent ID: 7682397

Claim:
A prosthetic device, comprising: a first end member and a second end member, each of the first and second end members comprising: an outer surface having at least one bone-engaging member extending therefrom; an inner surface in an opposed relation to the outer surface, the inner surface having a first sidewall, a second sidewall, and a third wall extending therefrom to define a socket; and at least one retention member positioned adjacent to the socket, the at least one retention member pivotable between a first position where the at least one retention member is positioned outside of the socket and a second position where at least a portion of the at least one retention member is positioned within the socket; and a motion-preserving insert comprising a first component and a second component, wherein the first component is sized and shaped for sliding engagement with the socket of the first end member such that the at least one retention member of the first end member secures the first component within the socket of the first end member when in the second position, the first component including a first articulation portion, wherein the second component is sized and shaped for sliding engagement with the socket of the second end member such that the at least one retention member of the first end member secures the first component within the socket of the first end member when in the second position, the second component including a second articulation portion, the second articulation portion cooperating with the first articulation portion of the first component to provide relative pivotal and rotational movement between the first and second components; wherein the at least one retention member comprises at least one cam device; and wherein each of the first and second end members further comprises an access hole for accessing the cam device for selectively rotating the at least one retention member between the first position and the second position.