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Related Experiment Videos

Strap muscle neurovascular supply

R C Wang1, C M Puig, D J Brown

  • 1Division of Otolaryngology--Head and Neck Surgery, University of Nevada School of Medicine, Las Vegas 89102, USA. rwang@med.unr.edu

The Laryngoscope
|July 17, 1998
PubMed
Summary

Preserving the neurovascular supply to the sternohyoid (SH) muscle is crucial for laryngotracheal reconstruction. This study details the SH muscle

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Area of Science:

  • Anatomy
  • Surgical Reconstruction
  • Vascular Supply

Background:

  • The sternohyoid (SH) muscle is vital for laryngotracheal reconstruction.
  • Understanding its neurovascular supply is key to preventing tissue loss due to ischemia or denervation.

Purpose of the Study:

  • To investigate the detailed arteriovenous and neural supply of the strap muscles, specifically the sternohyoid (SH) and omohyoid (OMO) muscles.
  • To identify variations in neurovascular supply to inform surgical techniques in laryngotracheal reconstruction.

Main Methods:

  • Examination of strap muscle neurovascular supply in 16 human cadavers.
  • Utilized a transparent corrosion cast specimen with injected vessels to visualize arterial lumen diameters and intramuscular arteries.

Main Results:

  • The upper sternohyoid (SH) and omohyoid (OMO) muscles received arterial supply primarily from the superior thyroid artery (STA).
  • The inferior SH was supplied by the inferior thyroid artery, and innervation was via the ansa cervicalis.
  • Arterial branches to the upper SH had significantly larger lumen diameters compared to the lower SH or OMO.

Conclusions:

  • Neurovascular integrity can be preserved in an inferiorly based sternohyoid (SH) flap during laryngotracheal reconstruction.
  • Dissection techniques involving lateral and deep vascular supply preservation, along with the inferior terminal ansa branch, are recommended.

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