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Junctura anatomy.

M A Wehbé1

  • 1Pennsylvania Hand Center, Bryn Mawr 19010.

The Journal of Hand Surgery
|November 1, 1992
PubMed
Summary
This summary is machine-generated.

This study identified three types of juncturae between extensor tendons in cadaver hands: fascia, ligament, and tendon. The most common arrangement was fascia-ligament-tendon, offering insights into hand anatomy and tendon transfers.

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Area of Science:

  • Anatomy
  • Orthopedics
  • Surgical Anatomy

Background:

  • Understanding the intricate connections between extensor tendons is crucial for surgical procedures like tendon transfers.
  • Variations in extensor tendon anatomy can impact functional outcomes and surgical planning.

Purpose of the Study:

  • To meticulously dissect and classify the juncturae connecting the extensor tendons in human hands.
  • To identify the prevalence of different types of juncturae and document anatomical variations.

Main Methods:

  • Detailed dissection of 240 adult cadaver hands.
  • Systematic identification and classification of juncturae based on their composition (fascia, ligament, tendon).

Main Results:

  • Three distinct types of juncturae were consistently identified: fascial, ligamentous, and tendinous.

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  • Each hand exhibited three juncturae.
  • The most frequent pattern observed was fascia-ligament-tendon, progressing from the radial to the ulnar side.
  • Several anatomical aberrations in extensor tendon connections were noted.

    • Conclusions:

    • The study provides a detailed anatomical description of extensor tendon juncturae, categorizing them into fascial, ligamentous, and tendinous types.
    • The identified prevalence and variations of these connections have significant implications for reconstructive surgery and tendon transfer techniques.
    • Awareness of these anatomical findings is essential for surgeons to optimize outcomes and avoid potential complications.