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Utilization of intraoperative electroneurography to understand the innervation of the trapezius muscle
Author(s) -
Nori Subhadra,
Soo Kee Chee,
Green Ronald F.,
Strong Elliot W.,
Miodownik Saul
Publication year - 1997
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/(sici)1097-4598(199703)20:3<279::aid-mus3>3.0.co;2-8
Subject(s) - accessory nerve , medicine , electroneuronography , trapezius muscle , neck dissection , dissection (medical) , motor nerve , anatomy , cervical plexus , neck pain , pharyngeal muscles , scapula , surgery , electromyography , pharynx , physical medicine and rehabilitation , carcinoma , pathology , alternative medicine
The radical neck dissection is an operation for the management of lymph node metastases from primary sites involving the oral cavity, larynx, and other areas of the head and neck. In this procedure, the spinal accessory nerve is removed along with other structures. In modified neck dissection the spinal accessory nerve is preserved. Patients undergoing the modified neck dissection have had variable functional outcomes from little or no pain or disability, to significant muscle dysfunction. Our group hypothesized that patients with good functional outcomes following modified neck dissection may have had motor contributions from C2, C3, or C4 branches, while those with less favorable outcomes did not. To demonstrate the presence of motor input and its significance both from the spinal accessory nerve and the branches of the cervical plexus, we utilized intraoperative electroneurography. We find that although there is motor contribution from C2, C3, and C4 to the trapezius muscle, it was not consistent or significant. © 1997 John Wiley & Sons, Inc. Muscle Nerve 20, 279–285, 1997.