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Updated: Jun 12, 2026

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Heterotopic Hindlimb-to-Neck Transplantation in the Mouse: A Supermicrosurgical Model of Vascularized Composite Allotransplantation
Published on: April 10, 2026
Microvascular reconstruction in the vessel-depleted neck.
Kevin K Wong1, Kevin M Higgins, Danny J Enepekides
1Department of Otolaryngology - Head and Neck Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.
Summary
For head and neck cancer patients needing microvascular reconstruction, alternative neck vessels are crucial when primary options are damaged by prior treatments. This study reviews alternative arterial and venous sources for successful anastomosis.
Area of Science:
- Oncology
- Surgical Oncology
- Plastic Surgery
Background:
- Head and neck cancer treatments like surgery, radiation, and chemotherapy can compromise neck vessels.
- Prior treatments often necessitate microvascular reconstruction for optimal patient outcomes.
- Vessel depletion in the neck presents challenges for microvascular anastomosis.
Purpose of the Study:
- To explore alternative vascular options for microvascular reconstruction in vessel-depleted necks.
- To identify viable arterial and venous sources when standard neck vessels are unusable.
- To provide guidance for complex head and neck cancer reconstruction cases.
Main Methods:
- Review of existing literature on microvascular reconstruction techniques.
- Analysis of alternative arterial and venous donor sites.
- Discussion of vessel assessment in previously treated necks.
Main Results:
- Alternative arterial sources include superficial temporal, transverse cervical, thoracoacromial, and internal mammary arteries.
- Available venous options include the cephalic vein and vein grafts.
- Standard vessels (external carotid artery, internal jugular vein) may be compromised by prior treatments.
Conclusions:
- Microvascular reconstruction in vessel-depleted necks requires consideration of extra-cervical vascular sources.
- Careful patient selection and vessel assessment are critical for successful outcomes.
- Alternative vessel options ensure functional and cosmetic restoration for head and neck cancer patients.

