Bone cancer treatment typically combines surgery with chemotherapy, and sometimes radiation therapy. The exact approach depends on the type of bone cancer, where it is, whether it has spread, and your age. Most people go through several months of treatment involving more than one of these methods.
Why the Type of Bone Cancer Matters
There are several types of primary bone cancer, and each responds differently to treatment. Osteosarcoma, the most common type, is treated aggressively with chemotherapy before and after surgery. Ewing sarcoma also requires chemotherapy combined with surgery or radiation. Chondrosarcoma, which grows in cartilage cells, generally does not respond well to chemotherapy or radiation, making surgery the primary option.
These differences shape the entire treatment plan. Two people with “bone cancer” in the same bone could have very different experiences depending on which type they have.
Chemotherapy Before and After Surgery
For osteosarcoma, the standard chemotherapy combination includes three drugs: cisplatin, doxorubicin, and high-dose methotrexate. Regimens using three active agents consistently outperform two-drug combinations, and those that include high-dose methotrexate outperform those that don’t. Treatment typically starts before surgery (called neoadjuvant chemotherapy) to shrink the tumor, then continues afterward.
After the tumor is surgically removed, pathologists examine how much of it was killed by the pre-surgery chemotherapy. If more than 90% of the tumor cells are dead, that’s a strong sign the chemotherapy is working well. If less than 90% was killed, the team may adjust the regimen by adding other drugs.
For Ewing sarcoma, the standard U.S. protocol alternates between two drug combinations given in two-week cycles. Five-year event-free survival reaches about 73% with this compressed schedule, compared to 65% when cycles are spaced three weeks apart. That difference in timing matters considerably.
Surgery: Limb-Sparing vs. Amputation
Surgery is the most common method for removing the tumor itself. The goal is always to take out the entire cancer with a margin of healthy tissue around it. In most cases today, surgeons can perform limb-sparing surgery, removing the cancerous section of bone while keeping the arm or leg.
Amputation becomes necessary when the cancer has grown into major nerves and blood vessels around the tumor, when the tumor’s position makes limb-sparing surgery technically impossible, or when the cancer cannot be completely removed any other way. Sometimes a failed limb-sparing surgery (due to infection or other complications requiring removal of the reconstructed bone) leads to amputation as a second procedure.
Rebuilding the Bone After Tumor Removal
Once a section of bone is removed, the gap needs to be filled. There are several reconstruction options, and the choice depends on which bone is involved, how much was removed, and whether a joint was affected.
- Metal implants (endoprostheses): A metal and plastic prosthesis replaces the removed bone and sometimes the joint. These provide immediate stability and allow early movement. For children, expandable versions can be lengthened as the child grows.
- Donor bone (allograft): Bone from a cadaver donor replaces the missing segment. Over time, your own bone may grow into the graft. Healing takes longer than with metal implants, but this option works well when a joint doesn’t need replacing.
- Combination approach: A donor bone combined with a prosthetic implant gives you immediate structural strength from the implant while the donor bone restores muscle attachment points for a more natural reconstruction.
- Bone recycling: In select cases, the tumor-bearing bone itself is removed, treated to kill cancer cells (through freezing in liquid nitrogen or sterilization), and then reimplanted.
- Rotationplasty: Used mainly in children, this involves removing the tumor-bearing section of leg, then rotating the lower leg and reattaching it so the ankle functions as a new knee joint. A prosthetic lower leg is then fitted. It sounds dramatic, but it often provides excellent long-term function for active kids.
Complex cases may also require moving healthy tissue from another body part to close the wound, tendon transfers to restore motion, or vascular bypass to restore blood flow to the limb.
Radiation Therapy
Radiation plays different roles depending on the type of bone cancer. In Ewing sarcoma, it serves as an effective alternative to surgery when removing the tumor would cause too much functional damage. It’s also used after surgery if microscopic cancer remains at the margins.
Bone tumors generally require much higher radiation doses than soft tissue cancers, which creates a challenge: the surrounding healthy tissue may not tolerate those doses. Proton beam therapy addresses this by delivering a concentrated dose to the tumor while sparing nearby organs and tissues. Whether proton therapy is appropriate depends on the tumor’s location, the patient’s age, what tissue surrounds the cancer, and the overall treatment plan. It’s particularly valuable for tumors near the spine, skull base, or pelvis, where critical structures sit close by.
Radiation is also used for pain relief in advanced bone cancer. External beam therapy directed at painful tumor sites can significantly reduce discomfort, sometimes delivered in just a few sessions.
Managing Pain
Bone cancer pain can be severe, and managing it is a central part of treatment at every stage. Beyond standard pain medications, palliative radiation is one of the most effective tools. A radiation oncologist can target painful areas using external beam therapy or, less commonly, brachytherapy (a radioactive source placed inside or near the tumor). These approaches can provide meaningful relief even when the goal isn’t to cure the cancer. Anti-nausea medications are often prescribed alongside pain treatment, since both the cancer and its therapies can cause nausea.
Recovery and Rehabilitation
Rehabilitation after bone cancer surgery is a long process, especially with limb-sparing procedures. It can take about a year to learn to walk again after limb-sparing surgery on a leg. During that time, you’ll work with physiotherapists on strength and flexibility exercises, and you may need a sling, brace, or splint to support the reconstructed limb. Crutches are typically necessary until a bone graft fully heals and fuses with the remaining bone, followed by a transition to a cane or walker.
Recovery after amputation is actually faster because the surgery itself is less complex. Rehabilitation focuses on caring for the stump (keeping the skin healthy, exercising to strengthen surrounding muscles, and bandaging to shape it for a prosthesis), then learning to use the prosthetic limb. Occupational therapists evaluate your home and work environments and recommend modifications to help you stay independent.
One practical long-term consideration: if you had a bone graft, high-impact activities like hockey or soccer may be off limits permanently because grafts are more vulnerable to fracture. Low-impact activities like swimming and cycling are generally safe.
Survival Rates by How Far It Has Spread
Survival varies significantly by both the type of bone cancer and how far it has spread at diagnosis. Based on data from people diagnosed between 2015 and 2021, five-year relative survival rates for chondrosarcoma are 91% when the cancer is still localized to the bone, 71% when it has spread to nearby tissue or lymph nodes, and 28% when it has reached distant parts of the body. Chordoma, a rarer type, has somewhat better numbers: 94% localized, 85% regional, and 54% distant.
These statistics reflect averages across many patients and don’t account for individual factors like age, overall health, how well the tumor responds to chemotherapy, or specific tumor genetics. They’re useful for understanding the general picture, but your own outlook depends on details only your treatment team can assess.
Treatment for Cancer That Returns
When osteosarcoma comes back after initial treatment, the options narrow but still exist. Ifosfamide, given alone or combined with etoposide, has shown activity in roughly one-third of patients with recurrent disease who haven’t previously received it. Other combinations being used include gemcitabine with docetaxel for tumors that can’t be surgically removed, and targeted oral medications taken in three-week-on, one-week-off cycles. Surgery to remove recurrent tumors, particularly those that have spread to the lungs, remains important when feasible.