STABILIZED KNEE PROSTHESIS

摘要

A knee prosthesis includes a femoral component, a tibial component, and a coupling component interconnecting the femoral component and the tibial component. The tibial component includes ball. The femoral component is configured to move relative to the tibial component. The coupling component defines an internal cavity including a first spherical end portion and a second spherical end portion. The internal cavity is dimensioned to receive the ball of the tibial component. The ball is repositioned between the first spherical end portion and the second spherical end portion of the internal cavity upon movement of the femoral component relative to the tibial component.

主权项

1. A method of varying an angular constraint of a knee prosthesis comprising:
inserting a portion of a stabilizing post coupled to a tibial baseplate within a housing of a femoral component, the stabilizing post having a thickness and movably interconnecting the femoral component to the tibial baseplate; and allowing the femoral component to articulate with respect to the tibial baseplate, wherein the stabilizing post causes the knee prosthesis to have an angular constraint and increasing the thickness of the stabilizing post increases the angular constraint of the knee prosthesis.