Fig. 3.

A joint-sparing hemimetaphyseal resection is outlined on a cadaveric femur using the traditional manual technique. Using a printout of the preoperative resection plan for this specific cadaveric femur as a reference, the surgeon used a standard flexible metal surgical ruler and a marking pen to outline each limb of the osteotomy with respect to key visible and/or palpable external landmarks. This replicates the manner in which traditional manual resections typically are performed.