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What Is Forequarter Amputation?

Forequarter amputation is a radical operation that removes the entire upper extremity together with the shoulder girdle on the same side. It is also called interscapulothoracic amputation. The resection generally includes the arm, scapula, and clavicle or most of the clavicle, along with surrounding muscles and involved soft tissue. The procedure is now uncommon because limb-sparing treatment is preferred whenever cancer can be removed safely while preserving a useful extremity.

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What Is Forequarter Amputation?

Forequarter amputation is a radical operation that removes the entire upper extremity together with the shoulder girdle on the same side. It is also called interscapulothoracic amputation. The resection generally includes the arm, scapula, and clavicle or most of the clavicle, along with surrounding muscles and involved soft tissue. The procedure is now uncommon because limb-sparing treatment is preferred whenever cancer can be removed safely while preserving a useful extremity.

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Why Is Forequarter Amputation Performed?

The procedure is mainly used for large malignant tumors of the shoulder girdle, proximal humerus, chest wall, or axilla when limb-sparing surgery cannot achieve adequate cancer clearance or preserve a viable functional arm. It can also be used for palliation when an advanced tumor causes severe pain, bleeding, infection, fungation, or a useless swollen limb that cannot be controlled by other treatment. Rare traumatic injuries can also result in a forequarter-level amputation. The decision requires multidisciplinary assessment of tumor extent, major vessels, brachial plexus involvement, chest-wall disease, reconstruction options, and overall goals of care.

How Is Forequarter Amputation Performed?

The surgical team removes the upper limb and scapula while dividing the muscles that attach the shoulder girdle to the chest and back. The clavicle is divided or removed as required, and the subclavian vessels and brachial plexus are carefully controlled and divided near the thoracic outlet. Chest-wall resection can be added when tumor extends into ribs or nearby thoracic structures. The large defect is closed with local tissue, skin grafts, or reconstructive flaps, including selected fillet flaps created from tissue of the amputated limb.

What Is Recovery Like After Forequarter Amputation?

Recovery includes management of a large surgical wound, pain control, prevention of infection and blood clots, and rehabilitation for balance and one-handed function. Phantom limb sensations and phantom pain can occur even though the entire arm and shoulder girdle have been removed. Occupational and physical therapy help patients learn transfers, dressing, self-care, work adaptations, and mobility strategies. Selected patients can use specialized prosthetic devices, although prosthetic fitting is more challenging than after amputations that preserve the shoulder girdle.

What Are the Risks and Complications?

Possible complications include major bleeding, infection, wound breakdown, flap necrosis, blood clots, chest-wall complications, and problems related to anesthesia. Division of large nerves can lead to neuroma pain, phantom limb pain, or chronic neuropathic pain. Extensive tumor surgery can also leave large soft-tissue defects that require complex reconstruction and can have delayed healing after previous radiation therapy. Local recurrence or metastatic progression can occur despite technically successful amputation when the underlying cancer is aggressive.

Frequently Asked Questions About Forequarter Amputation

What body parts are removed during forequarter amputation?

The operation removes the entire upper extremity together with the scapula and the clavicle or most of the clavicle on the affected side.

Is forequarter amputation mainly used for cancer?

Yes. It is most commonly used for extensive malignant tumors of the shoulder girdle or proximal upper extremity when limb salvage is not feasible.

Can forequarter amputation be performed for symptom relief?

Yes. In selected patients with advanced cancer, it can be used palliatively to control severe pain, bleeding, infection, fungation, or a nonfunctional limb.

Can a prosthesis be used after forequarter amputation?

Yes, but fitting is more difficult because the shoulder girdle is absent. Specialized prostheses can provide cosmetic appearance or selected functional assistance.

References

Forequarter Amputation and Reconstructive Options. PubMed. https://pubmed.ncbi.nlm.nih.gov/32149840/. Date Accessed September 11, 2026.

Reconstruction of Forequarter and Extended Forequarter Amputations: Indications and Outcomes. PubMed. https://pubmed.ncbi.nlm.nih.gov/36728500/. Date Accessed September 11, 2026.

Forequarter amputation: a safe rescue procedure in a curative and palliative setting in high-grade malignoma of the shoulder girdle. PubMed. https://pubmed.ncbi.nlm.nih.gov/27526689/. Date Accessed September 11, 2026.

Is forequarter amputation justified for palliation of intractable cancer symptoms? PubMed. https://pubmed.ncbi.nlm.nih.gov/11150909/. Date Accessed September 11, 2026.

The role of radical amputations for extremity tumors: a single institution experience and review of the literature. PubMed. https://pubmed.ncbi.nlm.nih.gov/21837679/. Date Accessed September 11, 2026.