Patent ID: 8016833

Claim:
A cutting block assembly for resecting a distal femur, the cutting block assembly comprising: a first block having a first outer surface forming a first anterior chamfer cutting surface for providing a guiding surface for making an anterior chamfer cut on the femur, a second outer surface forming a first posterior chamfer cutting surface for providing a guiding surface for making a posterior chamfer cut on the femur, and at least one hole therein; and a second block having a recess for receiving the first block, the second block having a second anterior chamfer cutting surface for providing a guiding surface for making an anterior chamfer cut on the femur, a second posterior chamfer cutting surface for providing a guiding surface for making a posterior chamfer cut on the femur, an anterior cutting surface for providing a guiding surface for making an anterior cut on the femur, a posterior cutting surface for providing a guiding surface for making a posterior cut on the femur, and at least one protrusion adapted to engage the at least one hole of the first cutting block to couple the first cutting block and the second cutting block together; the first anterior chamfer cutting surface and the second anterior chamfer cutting surface are spaced to form a first slot for making an anterior chamfer cut on the femur, the first posterior chamfer cutting surface and the second posterior chamfer cutting surface are spaced to form a second slot for making a posterior chamfer cut on the femur, and the at least one hole in the first block and the at least one protrusion of the second block being positioned beyond lateral ends of the first and second slots.