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What Is Hindquarter Amputation?

Hindquarter amputation is a radical operation that removes an entire lower extremity together with part or all of the hemipelvis on the same side. It is also called external hemipelvectomy. Unlike internal hemipelvectomy, which removes pelvic bone while preserving the leg, hindquarter amputation sacrifices the limb to obtain adequate disease clearance or symptom control. The operation is now uncommon because limb-sparing pelvic tumor surgery is preferred whenever safe margins and a viable functional extremity can be achieved.

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What Is Hindquarter Amputation?

Hindquarter amputation is a radical operation that removes an entire lower extremity together with part or all of the hemipelvis on the same side. It is also called external hemipelvectomy. Unlike internal hemipelvectomy, which removes pelvic bone while preserving the leg, hindquarter amputation sacrifices the limb to obtain adequate disease clearance or symptom control. The operation is now uncommon because limb-sparing pelvic tumor surgery is preferred whenever safe margins and a viable functional extremity can be achieved.

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Why Is Hindquarter Amputation Performed?

The procedure is mainly used for very large or locally advanced pelvic bone and soft-tissue tumors when limb-sparing resection cannot provide adequate cancer clearance. It can also be performed after failed previous surgery or, in selected advanced cases, to relieve severe pain, bleeding, infection, fungation, or other disabling local symptoms. Surgical planning evaluates tumor involvement of the pelvis, hip, major blood vessels, lumbosacral plexus, pelvic organs, and surrounding soft tissue. Because morbidity is substantial, hindquarter amputation is reserved for carefully selected patients after multidisciplinary review.

How Is Hindquarter Amputation Performed?

The surgical team removes the lower limb together with the involved half of the pelvic ring through a large oncologic resection. Major iliac or femoral vessels are controlled, the lumbosacral nerves are divided as required, and the pelvic bones are cut according to the planned tumor margin. Adjacent bowel, bladder, abdominal wall, sacrum, or other structures can also require resection when directly involved by disease. The resulting defect is closed with large local tissue flaps, rotational flaps, or other reconstructive techniques designed to provide durable coverage.

What Is Recovery Like After Hindquarter Amputation?

Recovery is prolonged because the operation creates a large wound and permanently changes balance, transfers, sitting, standing, and mobility. Early care focuses on pain control, wound healing, prevention of infection and blood clots, and management of any pelvic-organ or soft-tissue reconstruction. Physical and occupational therapy help patients learn transfers, wheelchair mobility, crutch use, strengthening, and adaptation to daily activities. Prosthetic fitting is possible for selected patients but is challenging, and many patients rely primarily on crutches or a wheelchair for mobility.

What Are the Risks and Complications?

Possible complications include major bleeding, infection, wound breakdown, flap necrosis, blood clots, pelvic-organ injury, and problems related to prolonged anesthesia. Published series report high rates of wound-healing problems and infection after external hemipelvectomy. Phantom limb pain, neuroma pain, chronic neuropathic pain, and difficulties with sitting or mobility can persist after healing. Local recurrence or metastatic progression can still occur when the underlying malignancy is aggressive.

Frequently Asked Questions About Hindquarter Amputation

Is hindquarter amputation the same as external hemipelvectomy?

Yes. Hindquarter amputation and external hemipelvectomy both refer to removal of the entire lower limb together with part or all of the hemipelvis on that side.

How is hindquarter amputation different from internal hemipelvectomy?

Internal hemipelvectomy removes involved pelvic bone while preserving the leg, whereas hindquarter amputation removes both the involved hemipelvis and the entire lower extremity.

Is hindquarter amputation mainly used for cancer?

Yes. It is most commonly used for advanced pelvic sarcoma or other malignant tumors when limb-sparing surgery is not feasible or has failed.

Can a prosthesis be used after hindquarter amputation?

Yes, but prosthetic use is difficult because the hip and part of the pelvis are absent. Many patients rely more on crutches or wheelchair mobility.

References

Hindquarter amputation: is it still needed and what are the outcomes? PubMed. https://pubmed.ncbi.nlm.nih.gov/23307686/. Date Accessed September 11, 2026.

Hindquarter amputation for pelvic tumors. The importance of patient selection. PubMed. https://pubmed.ncbi.nlm.nih.gov/9602819/. Date Accessed September 11, 2026.

Oncologic Outcome and Quality of Life After Hindquarter Amputation for Sarcoma: Is it Worth it? PubMed. https://pubmed.ncbi.nlm.nih.gov/28321692/. Date Accessed September 11, 2026.

Soft tissue reconstruction after pelvic amputation: The efficacy and reliability of free fillet flap reconstruction. PubMed. https://pubmed.ncbi.nlm.nih.gov/33431341/. Date Accessed September 11, 2026.

Surgical and oncological outcomes after hindquarter amputation for pelvic sarcoma. PubMed. https://pubmed.ncbi.nlm.nih.gov/32475235/. Date Accessed September 11, 2026.