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Title: Split flexor carpi radialis muscle
Authors: Hua, J.
Prem Kumar, V. 
Pereira, B.P. 
Lim, A.Y.T.
Pho, R.W.H. 
Liu, J. 
Issue Date: Mar-1999
Citation: Hua, J., Prem Kumar, V., Pereira, B.P., Lim, A.Y.T., Pho, R.W.H., Liu, J. (1999-03). Split flexor carpi radialis muscle. Plastic and Reconstructive Surgery 103 (3) : 930-934. ScholarBank@NUS Repository.
Abstract: A detailed anatomic and intramuscular neural staining study in 22 human and 5 monkey upper limbs revealed that the flexor carpi radialis can be raised on its proximal neurovascular pedicle and that the muscle can be split along its tendon into two independently functioning neuromuscular compartments, each with its own nerve and blood supply. A study of the muscle architecture in the human specimens found the radial compartment to have significantly longer fiber length and a larger physiologic cross-sectional area than the ulnar compartment. Independence of function of each compartment was demonstrated in electrical stimulation studies in six monkeys (Macaca fascicularis), but no significant difference was noted in the peak isometric load between the two compartments (p = 0.68) in the monkey. The extra functioning muscle units become important in local transfers for restoring function in multiple nerve palsies as in Hansen's disease, severe traumatic loss of muscle in crush injuries and compartment syndromes, and after wide resection in infective and neoplastic conditions in the forearm and hand.
Source Title: Plastic and Reconstructive Surgery
ISSN: 00321052
Appears in Collections:Staff Publications

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