Surgical Technique: Extraarticular Knee Resection with Prosthesis-Proximal Tibia-extensor Apparatus Allograft for Tumors Invading the Knee

Background Intraarticular extension of a tumor requires a conventional extraarticular resection with en bloc removal of the entire knee, including extensor apparatus. Knee arthrodesis usually has been performed as a reconstruction. To avoid the functional loss derived from the resection of the extensor apparatus, a modified technique, saving the continuity of the extensor apparatus, has been proposed, but at the expense of achieving wide...