1354. Operations for peripheral neuropathy following trauma

Authors: Tetsuya Yoshizumi; Hiroshi Kanno, MD, PhD; Masamichi Shinonaga, MD, PhD (Atami city, Japan)

Introduction: Peripheral neuropathy occasionally develops after traumas caused by motor vehicle accidents, sport accidents, and falls etc. Patients with peripheral neuropathy often have complaints of motor/sensory disturbance derived from restrictive peripheral neuropathy. Here, we report operations for peripheral nerves following trauma. . Methods: We performed 135 operations for peripheral neuropathy following trauma during January 2016 to December 2018. In those operations, we retrospectively examined intraoperative findings, operative outcomes, and variables associated with peripheral neuropathy. . Results: Operations were performed for 11 males and 96 females. Age of patients ranged from 21 to 71 years being with a mean 45.6 years. Operations were classified to amputation of anterior scalenus muscles and cervical nervous stems dissection for thoracic outlet syndromes, 69 cases; amputation of piriformis muscles and sciatic nerve dissection for piriformis muscle syndrome, 24 cases; femoral nerve dissection for restrictive femoral nerve disorder, 15 cases; . superior cluneal nerve dissection, 7 cases; tibial nerve dissection for tarsal tunnel syndrome, 5 cases; other nerves dissection, 10 cases. Adhesion to surrouding tissues and/or restriction of peripheral nerves were recognized in 130 /135 cases (96.3 %). These findings suggested association with trauma. Operative outcomes showed recovery of symptoms in 127 cases (94.1%) and stationary 8 cases (5.9%). Among of stationary cases, 3 cases needed reoperations and recovered symptoms. A mean interval from onset to operation was 4.6 years. Conclusions.: Peripheral neuropathies occasionally are caused by trauma and sometimes develop lately. Release of nerve restriction or nerve dissection is useful for those disorders.