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Contrahentes digitorum muscle.

R Shane Tubbs¹, E George Salter, W Jerry Oakes

¹Department of Cell Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA. rstubbs@uab.edu

Clinical Anatomy (New York, N.Y.)

|September 28, 2005

Summary

Unusual variations of the adductor pollicis muscle in the hand are rare. This case report details a persistent contrahentes digitorum muscle, highlighting potential clinical implications for surgeons.

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Response.

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Area of Science:

Anatomy
Morphology
Human Anatomy

Background:

Anatomical variations of the hand muscles are infrequently documented.
The adductor pollicis muscle is crucial for thumb adduction.
Understanding hand muscle morphology is vital for clinical practice.

Observation:

An atypical adductor pollicis muscle variation was discovered during a routine cadaveric hand dissection.
This variation was identified within the context of a gross anatomy course.

Findings:

The observed muscle variation is believed to be a persistent remnant of the contrahentes digitorum muscle.
This represents a rare anatomical anomaly in the human hand.

Implications:

Anatomical variations, such as this muscle anomaly, can potentially cause median nerve compression within the carpal tunnel.
Clinicians, particularly hand surgeons, must be aware of such variations to prevent misdiagnosis and ensure proper treatment.
Awareness of rare anatomical variations aids in surgical planning and patient care.

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