Patent ID: 9713532
Date: 2017-07-25
CPC Classifications: A61F

Claim:
1. A method for augmenting a femoral component of a knee joint prosthesis, comprising: implanting a femoral component of a knee joint prosthesis and a femoral augment in a distal femur of a patient, wherein the femoral component and the femoral augment are left in the distal femur with the femoral augment connected to the femoral component for augmenting the femoral component in the distal femur, wherein the femoral component comprises a stem component to facilitate securing the femoral component to the distal femur, a lateral condyle, a medial condyle, a lateral inner rail, and a medial inner rail, the lateral inner rail extending proximally of a proximal side of the lateral condyle, the medial inner rail extending proximally of a proximal side of the medial condyle, wherein the femoral augment includes a body portion and a pair of legs extending distally from the body portion, the body portion including a tapered outer lateral surface and a tapered outer medial surface that each are tapered inwardly in a distal-to-proximal direction, the pair of legs defining a medial-lateral recess therebetween in which the lateral inner rail and the medial inner rail are received, wherein the femoral augment has an overall height in the range of 30 mm to 50 mm, and wherein the femoral augment is formed separately from the femoral component for subsequent connection to the femoral component and consists essentially of a porous metal material for facilitating bony ingrowth into and throughout the femoral augment for restoring lost bone in the distal femur when the femoral augment is implanted in the distal femur.