A Preligamentous Variant of the Thenar Motor Branch of the Median Nerve.
case_report · Level V
Where this comes from
- Record sourced from PubMed, PMID 33725702.
- Also identified by DOI 10.5435/JAAOSGlobal-D-20-00029 and PMC identifier 7546834.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
We report a rare variant of the thenar motor branch (TMB) of the median nerve. A preligamentous TMB was discovered during revision carpal tunnel release in a 49-year-old man. The prevalence and characteristics of TMB variations are discussed. The literature describing iatrogenic injury to the TMB variants, surgical treatment, and preoperative screening tools is reviewed. Recognition of anatomic variants of the TMB is essential considering notable consequences of iatrogenic injury.
Medical subject headings
- Carpal Tunnel Syndrome
- Median Nerve
Anatomy
- hand
- wrist