Patent ID: 8025663

Claim:
A system for establishing a gap between a femur and a tibia at a knee joint, comprising: an instrument having (i) a positioning member that defines a femur facing side and a tibia facing side, said positioning member including a first coupler, and (ii) a connector member having a first mating feature; an augment having a second coupler that cooperates with said first coupler to fix said augment to said positioning member abutting either said femur facing side or said tibia facing side; and a femoral resection guide having a second mating feature that mates with said first mating feature of said instrument, the instrument, augment, and femoral resection guide configured such that when the system is assembled and the femoral resection guide is positioned on a femur, the instrument and the augment span a gap between a posterior surface of the femur and a proximal surface of a tibia.