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Extensor digitorum brevis manus. A case report.

P Gebuhr, B Klareskov

Acta Orthopaedica Scandinavica

|February 1, 1987

Summary

This summary is machine-generated.

An anomalous extensor digitorum brevis muscle caused hand pain and swelling. Surgical treatment, either retinaculum division or muscle excision, resolved symptoms bilaterally, offering a potential solution for this rare condition.

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Area of Science:

Anatomy
Orthopedic Surgery
Hand Surgery

Background:

Anomalous muscles in the hand are rare anatomical variations.
The extensor digitorum brevis (EBD) is typically found in the foot, its presence in the hand is anomalous.
This case highlights a potential source of dorsal hand pain and swelling.

Observation:

A 45-year-old male presented with bilateral dorsal hand swelling, pain, and discomfort aggravated by activity.
Physical examination revealed the presence of an anomalous extensor digitorum brevis muscle.
Symptoms were functionally limiting and associated with the anomalous musculature.

Findings:

Surgical intervention was performed on each hand separately: division of the extensor retinaculum on one side and excision of the anomalous EBD muscle on the other.

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Both surgical approaches led to a complete resolution of symptoms.

Histopathological examination confirmed the presence of the extensor digitorum brevis muscle.

Implications:

This case demonstrates successful surgical management for symptomatic anomalous extensor digitorum brevis muscle in the hand.
It suggests that both extensor retinaculum division and direct muscle excision are viable treatment options.
Further research into the embryological origin and clinical significance of hand EBD is warranted.