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Deep palmar communications between the ulnar and median nerves
Marios Loukas1, Sharath S Bellary, R Shane Tubbs
1Department of Anatomical Sciences, School of Medicine, St George's University, Grenada, West Indies. mloukas@sgu.edu
Clinical Anatomy (New York, N.Y.)
|February 16, 2011
Summary
A deep communicating branch between the median and ulnar nerves was found in 16% of hands during cadaveric dissection. This finding offers valuable anatomical knowledge for surgeons to prevent iatrogenic injuries.
Area of Science:
- Anatomy
- Surgical Anatomy
- Neuroanatomy
Background:
- Hand innervation involves radial, median, and ulnar nerves.
- Sensory distribution overlap between median and ulnar nerves exists, particularly on the fourth digit.
- Inter-nerve communications can alter typical sensory patterns.
Purpose of the Study:
- To investigate the prevalence of a deep communicating branch between the median and ulnar nerves in the hand.
- To describe the anatomical course and origin of this rare communicating branch.
- To enhance surgical understanding and minimize iatrogenic nerve damage.
Main Methods:
- Cadaveric dissection of 50 hands from 25 adult specimens.
- Systematic examination for the presence of a deep communicating branch.
- Documentation of the branch's origin and pathway.
Main Results:
- A deep communicating branch between the median and ulnar nerves was identified in 16% of the dissected hands.
- Bilateral occurrences of the communicating rami were noted in two individuals.
- Detailed anatomical descriptions of the branch's course were recorded.
Conclusions:
- The deep communicating branch, though infrequently described, is present in a notable percentage of the population.
- Understanding this anatomical variation is crucial for surgeons performing hand procedures.
- This data aids in preventing potential nerve injuries during surgical interventions.
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