Radial-capitellar implant
AssigneeMayo Foundation for Medical Research and Education
InventorsWilliam P. Cooney, III, Bernard F. Morrey, David A. Leibel
Life of this patent
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Abstract
A radial-capitellar implant for surgical replacement of the capitellum of the humerus and, optionally, the head of the radius. The radial-capitellar implant includes a capitellar implant or surface replacement arthroplasty of the capitellum and a radial prosthesis for replacement of the head of the radius. In one embodiment the radial prosthesis includes an articular head which moveable articulates with a stem implantable in the radius.
Claims6
An implantable joint prosthesis for implantation at the radiocapitellar joint, the prosthesis comprising:
- a capitellar prosthesis for replacing a capitellum while leaving an adjacent trochlea substantially intact, the capitellar prosthesis comprising a capitellar prosthesis body having a smooth convex articular surface and a bone interface surface on a side opposite to the articular surface;
- and a first stem extending outwardly away from the bone interface surface, further comprising a radial prosthesis, the radial prosthesis comprising a second stem and a head, the head being articulated to the second stem by a ball joint, wherein the ball joint comprises a primary ball articulable into a primary joint socket and a secondary ball articulable into a secondary joint socket.
An implantable joint prosthesis for implantation at the radiocapitellar joint, the prosthesis comprising:
- a capitellar prosthesis for replacing a capitellum while leaving an adjacent trochlea substantially intact, the capitellar prosthesis comprising a capitellar prosthesis body having a smooth convex articular surface and a bone interface surface on a side opposite to the articular surface;
- and a first stem extending outwardly away from the bone interface surface;
- and a radial head prosthesis, the radial prosthesis comprising a second stem and a head, the head having a concave articular surface and articulated to the second stem by a ball joint, and further wherein the ball joint comprises a primary ball articulable into a primary joint socket and a secondary ball articulable into a secondary joint socket.
Dependencies are inferred from the claim text.