US Patent 7618421 Tools for femoral resection in knee surgery

Tools for resecting the femur include an anchoring device, a three-way alignment guide and a six way alignment guide attachable to the anchoring device, a resection guide attachable to the three-way alignment guide and equipped with couplings for trackers, an A-P sizer, a femoral sizing block bushing attachable to the six-way alignment guide, a 4-in-1 femoral cutting block, a 5-in-1 positional alignment guide attachable to the six-way alignment guide, a pair of diodes, and a 5-in-one cutting block. Methods of utilizing the apparatus are also disclosed.