How is bone cancer treated?

Depends on origin: If the cancer is the only site and came from the bone, then surgery is the main treatment. Most commonly its from spread from other cancers to the bone. In this case if their is fracture surgery may be needed, otherwise radiation is used to control pain and symptoms and prevent further destruction of the bone.

Depends: Treatment will depend on whether this is a primary/originated from the bone itself or this is a spread from other cancer that is located outside the bone- also depends on the type of the cancer. Need more information to give a better asnwer.

Multi-modality: There are different types of bone cancer but generally treatment involves one or more of the following: surgery, chemotherapy and radiation. Often all 3 will be used as part of the therapy.