Knee joint prosthesis

Details Knee joint prosthesis Knee joint prosthesis

1992-08-27

1994-07-05

Isabella, David

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

Implantable prosthesis

Bone

623 18, A61F 238

Patent

active

053263588

ABSTRACT:
A knee joint prosthesis includes two guide faces for receiving the condyles of a distal femur. The prosthesis includes a tibial plateau of polyethylene which is embedded in a metal tibial shank with a plate. The underside of the plate is planar and bears against a resection area of the tibia shaped as a planar endface. On the inside of the plate, in the region of the guide faces, pockets are formed. The pockets follow the curvature of the guide faces in sagittal planes and exhibit at their lowest point a maximum wall thickness of 1.5 mm, while the minimum wall thickness of the tibial plateau resting in the pockets amounts to 6.5 mm.

REFERENCES:
patent: 4257129 (1981-03-01), Volz
patent: 4568348 (1986-02-01), Johnson et al.
patent: 4808185 (1989-02-01), Penenberg
patent: 5116376 (1992-05-01), May
patent: 5176710 (1993-01-01), Hahn et al.
patent: 5201881 (1993-04-01), Evans

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