Variations
in the Nerve Supply to the
Extensor Carpi Radialis Brevis
Published: February 1, 2012 | DOI: https://doi.org/10.7860/JCDR/2012/.1879
Meenakshi Khullar, Gurdeep Kalsey, Vijay Laxmi, Sachin Khullar
1. Assistant Prof., Department of Anatomy, Guru Gobind
Singh Medical College,
Faridkot, Punjab, India.
2. Prof. and Head, Department of Anatomy, Government
Medical College, Amritsar, Punjab, India.
3. Associate Prof., Department of Anatomy, Government
Medical College, Amritsar, Punjab, India.
4. Senior resident Adesh Institute of Medical Sciences and
Research, Bathinda, Punjab, India; presently Consultant
Orthopaedics Surgeon, IGMH Male’ Republic of Maldives.
Correspondence
Dr. Meenakshi Khullar
43- Vikas Vihar (Phase-1)
Ferozepur City- 152002.
Punjab, India.
Phone: 9888104425
E-mail: meenakshikhullar8@gmail.com
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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