Microsurgical Resection of a Common Peroneal Nerve Schwannoma: A 3-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2018 01;14(1):83

Department of Neurosurgery, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK.

Peripheral nerve sheath tumors are benign entities that manifest with pain or neurological deficits from mass effect. Treatment is mostly surgical, however, the aggressiveness of treatment needs to be carefully considered with respect to preserving function. We present a case of a 62-year-old male with a 2-year history of left lower extremity pain radiating toward the dorsolateral foot. There was a tender and palpable mass in the lateral popliteal fossa with imaging consistent with Schwannoma of the common peroneal nerve. The patient was counseled for surgery and informed consent was obtained. Microsurgical resection was undertaken and gross total resection was achieved without compromise of function. We demonstrate the placement of neurophysiological monitoring electrodes in all 3 compartment of the calf as well as the use of stimulation to identify a nonfunctioning area for entering the nerve sheath. Anatomy of the popliteal fossa and microsurgical technique for resection of nerve sheath tumors are discussed. When dealing with these pathologies, it is important to use intraoperative neurophysiology as well as careful technique in order to achieve maximal resection without compromising neurological function.

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http://dx.doi.org/10.1093/ons/opx066DOI Listing
January 2018
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