Variations in the Nerve Supply to the Extensor Carpi Radialis Brevis
Introduction: An area of variability has been noted in the origin of the nerve to extensor carpi radialis brevis, with previous studies attesting variably that it arises more commonly from the radial, deep radial or the superficial radial nerve. This study was undertaken to confirm or refute our...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
JCDR Research and Publications Private Limited
2012-02-01
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| Series: | Journal of Clinical and Diagnostic Research |
| Subjects: | |
| Online Access: | https://jcdr.net/articles/PDF/1879/3%20-%203629.(A).pdf |
| Summary: | Introduction: An area of variability has been noted in the origin
of the nerve to extensor carpi radialis brevis, with previous
studies attesting variably that it arises more commonly from
the radial, deep radial or the superficial radial nerve. This study
was undertaken to confirm or refute our impression that the
superficial radial nerve is purely a sensory nerve as has been
often reported in literature.
Methods: The nerve supply to Extensor carpi radialis brevis was
studied in 60 adult cadaveric upper extremities.
Results: In only 50% of the limbs, this branch had the usual
origin from deep branch of radial nerve. In the remaining 50%
limbs, it arose from the angle of bifurcation of radial nerve in
20% and from the superficial branch of radial nerve in 30%.
However, there was no corelation between the site of division of
radial nerve and the source of nerve to this muscle.
Conclusions: The present data emphasizes that the nerve supply
to extensor carpi radialis brevis from superficial branch of radial
nerve is not a rare occurrence, but that it holds a significant
variability which is worth considering while planning for surgeries. |
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| ISSN: | 2249-782X 0973-709X |