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Related Concept Videos

Arteries of Lower Limbs01:20

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The external iliac artery transitions out of the body cavity, entering the femoral region of the lower leg, and is renamed the femoral artery at the point where it traverses the body wall. This artery is responsible for the distribution of blood to the thigh's deep muscles and the skin's ventral and lateral regions, achieved through several minor branches and the lateral deep femoral artery, which also spawns a lateral circumflex artery. The knee area receives blood from the genicular...
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Related Experiment Video

Updated: Jan 7, 2026

A Reliable Porcine Fascio-Cutaneous Flap Model for Vascularized Composite Allografts Bioengineering Studies
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Medial Sural Artery Perforator Flap Radiographic Vascular Characteristics.

Michael A Cirelli1, Justin M Hintze2, Taylor B Cave2

  • 1Mayo Clinic Alix School of Medicine, Mayo Clinic, Phoenix, Arizona, USA.

Head & Neck
|December 12, 2025
PubMed
Summary

Pre-operative CT angiography reveals medial sural artery (MSA) branching patterns for improved medial sural artery perforator (MSAP) flap harvest in head and neck reconstruction. Type IIa branching is most common, often linked to lateral MSA dominance.

Keywords:
computerized tomography (CT) imagingfree flap reconstructionmaximum intensity projection (MIP) imagingmedial sural arteryperforator

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Area of Science:

  • Vascular surgery
  • Anatomical studies
  • Reconstructive surgery

Background:

  • Medial sural artery perforator (MSAP) flaps are preferred for head and neck reconstruction due to favorable characteristics.
  • Key advantages include skin paddle pliability, adequate pedicle length, and minimal donor site morbidity.
  • Understanding the vascular anatomy is crucial for successful flap harvest.

Purpose of the Study:

  • To characterize medial sural artery (MSA) vascular branching patterns.
  • To utilize the Dusseldorp et al. classification system for anatomical assessment.
  • To correlate branching patterns with pre-operative computed tomography angiography (CTA) findings.

Main Methods:

  • Retrospective review of 153 lower extremity CTAs from 78 patients.
  • Data collection focused on MSA branching pattern, branch dominance, and vessel depth.
  • Analysis based on the Dusseldorp et al. classification system.

Main Results:

  • Type IIa branching pattern was the most prevalent.
  • The lateral branch of the MSA was most frequently dominant.
  • A significant relationship was observed between type IIa branching and lateral MSA dominance.
  • No significant difference in vessel depth was found across different branching patterns.

Conclusions:

  • Lower extremity CTA is a valuable tool for pre-operative vascular anatomy assessment in MSAP flap harvest.
  • Type IIa and IIb MSA branching patterns may correlate with lateral and medial MSA dominance, respectively.
  • This anatomical insight aids in planning and optimizing MSAP flap procedures for head and neck reconstruction.