Knee prosthesis

Details Knee prosthesis Knee prosthesis

1990-08-27

1992-05-26

Isabella, David

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

Implantable prosthesis

Bone

A61F 238

Patent

active

051163756

ABSTRACT:
An improved knee joint prosthesis is provided of the type having a femoral component for attachment to the lower end of a patient's femur and an interengagable tibial component for attachment to the upper end of the patient's tibia. The tibial and femoral components are each formed from a high strength biocompatible material, with the tibial component typically supporting a meniscal bearing member of a high density plastic or the like for engaging the femoral component to accommodate natural or near-natural knee flexion. The bearing member includes an upwardly projecting stabilizing post having a posterior cam surface for engagement by a removably mounted stabilization rod extending between medial and lateral condyles of the femoral component. When used, the stabilization rod contacts the stabilization post during moderate to severe flexion of the knee prosthesis to extend the range of stable flexion of the prosthesis.

REFERENCES:
patent: 4462120 (1984-07-01), Rambert

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