Osteosarcoma is a type of cancer that produces immature bone. It is the most common type of cancer that arises in bones, and it is usually found at the end of long bones, often around the knee.
Curative procedures for primary bone cancer such as osteosarcoma leave a bony defect which needs to be filled with a something. This could be an endoprosthesis, an allograft (piece of donor bone) or the patient’s own sterilised bone from another part of the body to allow continued limb function. This is known as a curative resection.