Lunate implant and method of stabilizing same

Details Lunate implant and method of stabilizing same Lunate implant and method of stabilizing same

1989-06-02

1990-09-11

Green, Randall L.

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

Implantable prosthesis

Bone

A61F 242

Patent

active

049559150

ABSTRACT:
A lunate implant includes a one-piece, at least semi-rigid body defining a triquetrum face, a scaphoid face, a cupped, concave, distal surface adapted to articulate with the capitate bone, a proximal surface, a plamar surface and a dorsal surface. A pair of spaced, generally parallel suture passages extend between and open through the triquetrum and scaphoid faces. A pair of sutures are stitched to ligaments of the wrist. The ends of the sutures are passed through the suture passages so that one of the sutures has ends extending away from the triquetrum face and the other suture has ends extending away from the scaphoid face. The ends are grasped and the lunate implant is pulled down into the desired position in the distal carpal row of the wrist. The sutures are tied adjacent the implant to stabilize and position the implant.

REFERENCES:
patent: 3924276 (1975-12-01), Eaton
patent: 4164793 (1979-08-01), Swanson
patent: 4198712 (1980-04-01), Swanson
patent: 4450591 (1984-05-01), Rappaport
Reconstructive Surgery in the Arthritic Hand & Foot, Clinical Symposia, vol. 31, No. 6, (1979), pp. 24-28.
Flexible Implant Resection Arthroplasty in the Hand & Extremities, by Alfred B. Swanson, The C. V. Mosby Co., Saint Louis, (1973), pp. 1-6, 15, 16, 30, 31 and 240-253.

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