Extra-articular wide tumor resection and limb reconstruction in malignant bone tumors invading the knee joint

We demonstrate our procedure of extra-articular wide tumor resection and it s clinical outcome. The knee joint including the femorotibial, patellofemor al and the proximal tibiofibular joints was totally resected without any vi ew of articular cartilage and synovium. The resected limb was reconstructed with endoprosthesis of the knee joint. The average score of the limb funct ion evaluated by ISOLS criteria was 69.3% in all patients. The limb functio n of these patients was almost the same as that of the patients who receive d the intra-articular procedure. The procedure of extra-articular resection was theoretically necessary and clinically practical.