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Step-by-Step Forelimb Amputation

Daniel D. Smeak, DVM, DACVS, & Steven Lisano, DVM, MS Colorado State University

Surgery, Soft Tissue

|July 2012|Peer Reviewed

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Step-by-Step Forelimb Amputation

Forelimb amputation is a salvage procedure performed for traumatic injuries (eg, irreparable fractures, soft tissue wounds), severe neurologic or ischemic lesions confined to the forelimb (eg, brachial plexus avulsion), certain congenital deformities, invasive neoplasia, and uncontrolled infection.

The technique described here may be preferred because it readily exposes major nerves and vessels, does not require bone cutting, and results in a cosmetic wound, as no prominent scapula remains. This procedure also carries lower risk for postoperative pressure necrosis because scapular/bony prominences (eg, the acromion) are removed. This is also the preferred technique to remove neoplasia, particularly lesions located in the proximal forelimb, because it allows resection with extensive surgical margins.

Considerations for Large-Breed Dogs
Large- or giant-breed dogs undergoing forelimb amputation have difficulty adapting after surgery, particularly if they are obese or have concurrent neurologic deficits or significant contralateral limb osteoarthritis. Temporarily placing a sling on the affected limb may give owners a good idea about the pet’s ability to adapt following the procedure. The veterinarian and owner must weigh the risk for disability against the immediate benefit of pain relief after removal of a debilitating neoplastic process or elimination of a life-threatening limb infection.

Before the Procedure
IV prophylactic antibiotics targeting skin contaminants should be administered to ensure optimal blood and tissue concentrations when the wound is created and throughout the procedure. Moderate to severe pain should be anticipated, especially during the first 24 hours after amputation.

Appropriate preemptive analgesic medications are warranted, and multimodal analgesia (including opioids) should be administered. In general, no blood products are needed in otherwise stable patients. However, a large-bore venous catheter is required if the need for rapid fluid infusion or transfusion should arise.

Postoperative Care
Exercise should be limited until suture removal at 14 days. Some patients benefit from mild wound compression with an elastic body suit or conforming soft bandage. Cold compresses seem to help reduce mild wound edema postoperatively for up to 3 days (5 minutes, q8h). When no contraindications exist, appropriate oral analgesics, including NSAIDs, should be administered for 3 to 5 days after surgery.

What You Will Need:

  • Standard general surgery pack
  • Self-retaining (eg, Gelpi) or handheld (eg, Senn) retractors  
  • Bone-holding forceps (eg, Kern) or stout towel clamp
  • 2-0 to 4-0 monofilament absorbable and nonabsorbable suture

DANIEL D. SMEAK, DVM, DACVS, is professor and chief of surgery at Colorado State University, where he also practices soft tissue surgery. An accomplished and award-winning soft tissue surgeon and teacher, Dr. Smeak has edited several textbooks and written more than 30 chapters and 100 peer-reviewed articles. He enjoys delivering interactive continuing education lectures and wet labs to veterinarians worldwide, including the NAVC Conference and the NAVC Institute. Dr. Smeak received his DVM from Michigan State University and completed a rotating small animal internship at CSU, followed by a surgical residency at Ohio State University.

STEVEN LISANO, DVM, MS, is in private practice in western Colorado and continues to participate in the development of canine surgical anatomy, an interactive computer tutorial program founded by Dr. Lisano for veterinarians and veterinary students. He recently earned a certificate in veterinary medical acupuncture to better address the needs of his patients and clients. Dr. Lisano earned his DVM from Colorado State University, where he also earned an MS and served as an anatomy instructor.


References

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