TY - JOUR
T1 - Clinical and functional significance of accessory brachialis muscle
T2 - An unique anatomical variant
AU - Sirisinagandla, Sreenivasa Rao
AU - Potu, Bhagath Kumar
PY - 2013/12
Y1 - 2013/12
N2 - A thorough knowledge of the variations in the patterns of muscle insertion and the consequent neurovascular entrapment due to them is important for orthopedic and plastic surgeons. During routine dissection, we encountered a unique occurrence of an accessory brachialis muscle (acBr) blending with the medial aspect of bicipital aponeurosis in the cubital fossa. It also entrapped the median nerve and brachial artery due to its superficial position. The abnormality reported here might result in neurovascular compression symptoms in the upper limb and possible mechanical advantages or disadvantage in the flexion of elbow joint. To the best of our knowledge, the brachialis variant insertion we present here is rare in the list of its anomalies. We also discuss in this report the embryological background and the clinical application of the variation that can abet clinicians in evaluating symptoms involving the upper limb.
AB - A thorough knowledge of the variations in the patterns of muscle insertion and the consequent neurovascular entrapment due to them is important for orthopedic and plastic surgeons. During routine dissection, we encountered a unique occurrence of an accessory brachialis muscle (acBr) blending with the medial aspect of bicipital aponeurosis in the cubital fossa. It also entrapped the median nerve and brachial artery due to its superficial position. The abnormality reported here might result in neurovascular compression symptoms in the upper limb and possible mechanical advantages or disadvantage in the flexion of elbow joint. To the best of our knowledge, the brachialis variant insertion we present here is rare in the list of its anomalies. We also discuss in this report the embryological background and the clinical application of the variation that can abet clinicians in evaluating symptoms involving the upper limb.
KW - Accessory brachialis
KW - Neurovascular compression
KW - Variation
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U2 - 10.4067/S0717-95022013000400037
DO - 10.4067/S0717-95022013000400037
M3 - Article
AN - SCOPUS:84894279422
SN - 0717-9367
VL - 31
SP - 1383
EP - 1385
JO - International Journal of Morphology
JF - International Journal of Morphology
IS - 4
ER -