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Unusual variant of the extensor carpi radialis brevis muscle: A case report
Author(s) -
Mitsuyasu Hiromichi,
Yoshida Ryo,
Shah Munir,
Patterson Rita M.,
Viegas Steven F.
Publication year - 2004
Publication title -
clinical anatomy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 71
eISSN - 1098-2353
pISSN - 0897-3806
DOI - 10.1002/ca.10226
Subject(s) - medicine , anatomy , epicondylitis , epicondyle , extensor digitorum communis , tennis elbow , tendon , fascia , posterior interosseous nerve , cadaveric spasm , elbow , dissection (medical) , pathology , alternative medicine , palsy
A variation of the extensor carpi radialis brevis muscle (ECRB) origin was discovered during a cadaveric dissection. The identified ECRB originated from the fascia/tendon of the extensor digitorum communis (EDC), without any of its origin at the usual location on the lateral epicondyle. The ECRB tendon inserted onto the third metacarpal base. A branch of the posterior interosseous nerve innervated the ERCB. This is the first report of an ECRB originating from the EDC fascia/tendon. This unique variation of the ECRB origin may be of clinical interest, especially in the treatment of lateral epicondylitis (tennis elbow). Clin. Anat. 17:61–63, 2004. © 2003 Wiley‐Liss, Inc.