Read the complete guide: Organ Preservation Surgery for Cancer: Treatment Options, Candidacy and Outcomes
Limb-salvage surgery, also called limb-sparing surgery, removes a bone or soft tissue sarcoma from an arm or leg while preserving the limb and reconstructing it so that it stays as functional as possible.
Many patients with extremity sarcomas can now be considered for treatment without amputation, thanks to accurate MRI mapping, effective chemotherapy and radiation, and advanced reconstruction methods, all coordinated by a specialized sarcoma team.
When tumor-free margins can be achieved, limb-salvage surgery has shown survival similar to amputation while often delivering better function and quality of life.
Studies of osteosarcoma and soft tissue sarcoma indicate that survival depends mainly on tumor type, grade, response to therapy, and complete tumor removal, rather than on whether the limb is amputated. Adding radiation therapy or chemotherapy allows surgeons to spare the limb in many soft tissue sarcomas.
Reconstruction after limb-salvage surgery replaces the removed bone or tissue with a prosthesis, donor bone, or the patient’s own tissue, chosen according to tumor location, age, and activity goals.
The table below lists the main reconstruction methods and where each is commonly used.
| Reconstruction | How it works | Common use |
|---|---|---|
| Endoprosthesis (megaprosthesis) | Metal implant replaces bone and joint | Knee, hip, and shoulder tumors in adults |
| Expandable prosthesis | Implant that lengthens as the child grows | Growing children |
| Allograft | Donor bone transplant | Selected bone defects |
| Vascularized autograft | Patient’s own bone, such as fibula, with its blood supply | Long bone defects; biological reconstruction |
| Rotationplasty | Lower leg is rotated to act as a knee joint | Selected young patients with lower limb tumors |
| Flap reconstruction | Muscle and skin transferred to cover the defect | Soft tissue sarcoma with large defects |
Amputation remains necessary when the tumor cannot be removed with clear margins while leaving a functional limb, and it is recommended only after full evaluation by a sarcoma team.
Situations in which limb salvage may not be possible include:
For patients who do undergo limb salvage, recovery generally follows the phases shown in the table below, though timing varies with the operation and reconstruction.
| Phase | Typical timeframe | What to expect |
|---|---|---|
| Early recovery | First weeks | Wound healing; weight bearing and movement as directed by the surgical team |
| Rehabilitation | Several months | Gradual physiotherapy to restore strength and range of motion |
| Long-term follow-up | Years | Periodic clinic visits with limb imaging and chest imaging to monitor the implant, local recurrence, and lung spread |