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Case report of the double-headed extensor hallucis longus
K Ruzik1, K Westrych2, R S Tubbs3,4,5,6
1Department of Anatomical Dissection and Donation, Medical University of Lodz, Poland. kacper.ruzik@umed.lodz.pl.
Folia Morphologica
|February 21, 2022
Summary
A rare double-headed extensor hallucis longus (EHL) muscle was discovered during cadaveric dissection. This anatomical variation has potential clinical significance for foot pathologies.
Area of Science:
- Anatomy
- Morphology
Background:
- The extensor hallucis longus (EHL) muscle is crucial for toe extension.
- Anatomical variations of the EHL can have clinical implications.
Observation:
- A cadaveric dissection revealed a rare double-headed EHL muscle.
- The variation featured two muscle bellies originating from the fibula and interosseous membrane.
Findings:
- The double-headed EHL had a main tendon inserting at the big toe's distal phalanx and an accessory tendon with a medial insertion.
- Measurements and photographs documented this unique anatomical finding.
Implications:
- Understanding EHL anatomical variations is vital for diagnosing and treating foot conditions.
- Such variations may be linked to pathologies like foot drop, tendonitis, and anterior compartment syndrome.
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