Collarless shoulder arthroplasty prosthesis

Details Collarless shoulder arthroplasty prosthesis Collarless shoulder arthroplasty prosthesis

2006-05-16

2006-05-16

McDermott, Corrine (Department: 3738)

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

C623S020140

Reexamination Certificate

active

07044973

ABSTRACT:
A shoulder prosthesis of the present invention includes a modular humeral prosthesis component employing a collarless design. A body portion of the prosthesis is provided without a collar, and it may be implanted into a prepared proximal end of a humerus such that the body sits recessed below the level of the cut proximal surface of the humerus. A head portion is provided in which a support surface of the head functions as collar by direct apposition of it to the cut proximal humerus. The modular connection is thus recessed below the proximal bone surface. By providing a modular connection which is recessed below the bone surface, the benefits of modularity may be retained, while joint overstuffing may be reduced or eliminated, and a substantially full range of motion may be achieved.

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