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Year : 2020  |  Volume : 15  |  Issue : 2  |  Page : 391-393

Traumatic partial posterior cord brachial plexus injury in a patient with aberrant innervation of the long head of the triceps by the axillary nerve: Implications in nerve transfer surgery

Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India

Correspondence Address:
Dr. Kuntal Kanti Das
Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ajns.AJNS_160_19

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Brachial plexus repair forms an unmet need in terms of posttraumatic rehabilitation, especially the young population, wherein the incidence of accidents is high. This leads to decrease in the number of functionally active years after the accident. We encountered an interesting case of posttraumatic posterior cord injury predominantly affecting the shoulder abduction beyond 15°. An electrodiagnostic study showed a complete lack of conduction within the axillary nerve with reduced conduction velocity in the radial nerve. We took the patient up for the long head of the triceps transfer to the anterior division of the axillary nerve transfer. Intraoperatively, we found that the long head branch was originating from the axillary nerve at the point of division. As it could not be used for neurotization, we transferred the medial head branch of the radial nerve to the axillary nerve. The patient started to show electroclinical improvement after 3 months of the surgery. A few similar cases have been published, as a cadaveric finding. We report this case to highlight the possibility and need for a high clinical suspicion and also to provide a possible treatment option, in such aberrant anatomy.

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