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Vascularization of the long flexor tendon

A Yalin1, S Cavdar, F Ercan

  • 1Department of Anatomy, Histology-Embryology, Faculty of Medicine, Maramara University, Istanbul, Turkey.

Okajimas Folia Anatomica Japonica
|March 1, 1994
PubMed
Summary

The arterial supply of long flexor tendons in index and ring fingers comes from two main sources: vincula and intrinsic vessels. No differences in vascularization were observed between these fingers.

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Area of Science:

  • Anatomy
  • Vascular Biology
  • Hand Surgery

Background:

  • The long flexor tendons are crucial for hand function.
  • Understanding their vascular supply is important for surgical interventions and injury recovery.
  • Previous studies have provided limited information on the specific arterial supply to these tendons.

Purpose of the Study:

  • To investigate the morphological characteristics of the arterial supply to the long flexor tendons of the index and ring fingers.
  • To identify the primary vascular sources and their pathways to the tendons.
  • To compare the vascularization patterns between the index and ring finger tendons.

Main Methods:

  • Morphological study of arterial supply.
  • Analysis of 36 cadaver hands.
  • Identification of vascular sources and their anatomical course.

Main Results:

  • The long flexor tendons receive arterial supply from two main sources.
  • Vascularization primarily originates from small arteries within the vinculum longum and vinculum brevis, reaching the tendon's dorsal surface.
  • Intrinsic longitudinal vessels, running parallel to collagen fibers from the muscular attachment, also contribute to the blood supply.
  • No significant morphological differences in vascularization were found between the index and ring fingers.

Conclusions:

  • The long flexor tendons of the index and ring fingers possess a dual arterial supply system.
  • The vincula and intrinsic longitudinal vessels form the primary vascular network for these tendons.
  • The consistent vascularization pattern suggests similar susceptibility to injury and healing potential in both fingers.

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