Communication Between Musculocutaneous and Median Nerve – Different Types and Their Incidence in North Indian Population.
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Date
2013-09
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Abstract
The variations of the median nerve and the musculocutaneous nerve, like the communication between the two, may prove
valuable in the traumatology of the shoulder joint and the upper arm region and in situations when the surgeon has to
isolate and trace the median and musculocutaneous nerve distally. The present study was conducted on 60 upper limbs
belonging to 30 cadavers (Male:Female = 28:02), (Right:Left = 30:30) obtained from Dept. of Anatomy, Govt. Medical College,
Amritsar, Punjab. Brachial plexuses were exposed as per standard guidelines. The observations recorded were as follows:
1). The musculocutaneous nerve was absent in six (10%) limbs; the muscles usually supplied by this being supplied by median
nerve in two limbs and by lateral cord (coracobrachialis) and median nerve (biceps and brachialis) in the other four limbs.
2). A single communication between the musculocutaneous and the median nerve was encountered in the six (10%) limbs. It was
in the upper third of the upper arm, proximal to the entrance of the musculocutaneous nerve into the coracobrachialis muscle.
3.) A complete fusion of the musculocutaneous nerve and the median nerve after normal formation of the former was seen in
four (6.66%) limbs. Out of these four limbs; in 1 limb, coracobrachialis; in 2 limbs, coracobrachialis and biceps and in one limb all
three muscles of the anterior compartment were supplied by musculocutaneous nerve before its fusion with the median nerve.
Description
Keywords
Brachial plexus, communication, lateral cord, median nerve, musculocutaneous nerve
Citation
Chaudhary Priti, Kalsey Gurdeep, Singla Ranjan, Arora Kamal. Communication Between Musculocutaneous and Median Nerve – Different Types and Their Incidence in North Indian Population. Indian Journal of Clinical Practice. 2013 Sept; 24(4): 364-371.