AI Article Synopsis

  • The study aimed to assess the course and positioning of the extensor pollicis longus (EPL) tendon in relation to nearby structures and its clinical importance in different functional positions.
  • Twenty human cadaver arms were examined to measure the EPL tendon’s movement, its wrapping angle around Lister’s tubercle, and its path near other tendons.
  • The results indicated significant tendon mobility, highlighting the importance of understanding its anatomy for better diagnosis and surgical treatment of wrist injuries.

Article Abstract

Background: The aim of this anatomical study was to evaluate the course of the extensor pollicis longus (EPL) tendon, its positional relationship to adjacent structures, and the resulting clinical relevance under consideration of various functional positions.

Materials And Methods: Twenty upper extremities from ten adult human cadavers embalmed using Thiel's method were included in this study. The greatest possible movement/slippage of the EPL tendon, the angle at which the tendon wraps around Lister's tubercle, and its course across the extensor carpi radialis longus and brevis (ECRL and ECRB) were recorded and defined in all functional positions.

Results: Our findings demonstrate a high range of motion of the tendon in relation to clinically relevant structures.

Conclusion: Understanding the anatomical course of the EPL tendon, its potential extent of movement, and its resulting positional changes is essential for the diagnosis and surgical treatment of patients with complaints or injuries in the dorsoradial wrist region.

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Source
http://dx.doi.org/10.1007/s10354-024-01052-wDOI Listing

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