Limb salvage for bone sarcoma of the proximal tibia.

We have treated 12 cases of high grade malignant bone tumours of the proximal tibia by various methods of limb salvage. Nine osteosarcomata and 3 malignant fibrous histiocytomata were included. Muscle flaps were needed in all cases except in the one arthrodesis, and reconstruction of the extensor mechanism was carried out. In nine cases an endoprosthesis was inserted. There were poor results due to loss of movement or failure to regain extension power. A two-stage method of reconstruction of the knee joint is described.