DISTAL FEMORAL CUTTING BLOCK ASSEMBLY

摘要

A composite cutting block (10) for preparing a patient's distal femur to receive a knee prosthesis includes a first block body (11) having a triangular cross section that engages the patient's distal femur using bone tissue connectors such as bone spikes (13, 14). A pair of inclined surfaces (15, 16) forms acute angles with a flat surface (12), the inclined surfaces defining anterior and posterior chamfer cutting guide surfaces. A second block body (25) has an undersurface (27) with an elongated inverted "T" shaped slot (24). The first block body (11) fits the slot (24) so that the flat distal surfaces (12) of the first block body and the flat distal surfaces of the second block body (27) are in planes that are closely positioned upon assembly. A connector (32) in the form of a threaded shaft (33) holds the first block body in the slot of the second block body to define an assembled position.