Femoral milling instrumentation for use in total knee arthroplasty with optional cutting guide attachment

An instrumentation set for shaping bone to accommodate a prosthetic implant, said instrumentation set including:

• a first alignment means configured for connection to an exposed end of a bone to be milled for establishing a reference plane substantially perpendicular to a mechanical axis of the bone,
• a second alignment means removably carried by said first alignment means for establishing amount of bone to be removed during milling,
• base means removably carried by said second alignment means by a locking mechanism and configured for temporary fixation to the exposed end of the bone, said base means establishing a reference point relative to the bone to be milled,
• a milling guide for connection to the base means adjacent the exposed end of the bone, said milling guide including a plurality of walls, each wall defining a slot for accommodating a milling device, each wall of said milling guide defining a distinct reference plane adjacent said exposed end of the bone, the milling guide configured to guide a milling device along each slot for shaping the bone,
• wherein said base means includes a plurality of openings for accommodating fastening devices to secure the base means to the bone, said base means includes at least two bodies connectable on opposite medial and lateral sides of the bone, at least one of the two bodies including a said locking mechanism engagable with the second alignment means and the milling guide for temporarily clamping the alignment means and milling guide to the body.