Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0363-5023(05)80289-8
Title: The musculocutaneous nerve and its branches to the biceps and brachialis muscles
Authors: Yang, Z.-X. 
Pho, R.W.H. 
Kour, A.-K. 
Pereira, B.P. 
Issue Date: 1995
Source: Yang, Z.-X., Pho, R.W.H., Kour, A.-K., Pereira, B.P. (1995). The musculocutaneous nerve and its branches to the biceps and brachialis muscles. Journal of Hand Surgery 20 (4) : 671-675. ScholarBank@NUS Repository. https://doi.org/10.1016/S0363-5023(05)80289-8
Abstract: The musculocutaneous nerve and its motor branches to the biceps and brachialis were dissected and studied under the operating microscope in 24 fresh-frozen codaveric specimens. The motor branch to the biceps exits from the musculocutaneous nerve at 119 mm distal to the coracoid process. Anatomic variations were seen in the innervation of the two heads of the biceps. A common primary motor branch that bifurcates to supply the two heads was seen in 20 specimens (type I). Two specimens were observed to have two separate primary branches originating from the main musculocutaneous nerve trunk to individually supply each head of the biceps (type II). The third variation, two specimens (type III), was observed in two specimens to be similar to type I, but with an additional distal motor branch innervating the common belly of the biceps muscle. The motor branch to the brachialis muscle exits from the musculocutaneous nerve 170 mm distal to the coracoid process. A single primary motor branch (type I) was seen in 23 specimens, and 1 specimen (type II) showed two separate primary motor branches innervating the muscle. The motor branches to the biceps and brachialis muscles may be dissected proximally from their points of exit from the main trunk of the musculocutaneous nerve for a mean distance of 44 mm and 53 mm, respectively. This information can be used by surgeons who elect to suture intercostal nerves to the motor branches of the biceps and brachialis muscles for elbow flexion in brachial plexus injuries.
Source Title: Journal of Hand Surgery
URI: http://scholarbank.nus.edu.sg/handle/10635/38561
ISSN: 03635023
DOI: 10.1016/S0363-5023(05)80289-8
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

37
checked on Dec 14, 2017

WEB OF SCIENCETM
Citations

33
checked on Nov 21, 2017

Page view(s)

56
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.