Modular knee joint prosthesis

Details Modular knee joint prosthesis Modular knee joint prosthesis

1988-04-08

1990-08-21

Apley, Richard J.

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

Implantable prosthesis

Bone

A61F 238

Patent

active

049502980

ABSTRACT:
A femoral component base having a pair of laterally spaced apart condylar portions, each of which has an external surface that is smoothly convexly curved anterior-posteriorly to match generally the distal profile of the anatomical femoral condyle and smoothly convexly curved laterally throughout its antero-posterior extent. The external convexly curved surfaces engage the tibial component having a platform portion laterally with spaced apart concavities, each of which would receive one of the condylar portions of the femoral component to allow antero-posterior rotation between the components during use of the joint. The femoral component includes a modular member having adjustable plates for adjusting the position of the femoral component in response to the bone condition discovered during surgery. The tibial, femoral and modular components further include a triangular, ramp post and corresponding confined recess to limit flexion and undesirable lateral movement.

REFERENCES:
patent: 4209861 (1980-07-01), Walker et al.
patent: 4213209 (1980-07-01), Insall et al.
patent: 4298992 (1981-11-01), Burstein et al.
patent: 4714474 (1987-12-01), Brooks, Jr. et al.
patent: 4731086 (1988-03-01), Whiteside et al.

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