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  • Title: Management and results of sciatic nerve injuries: a 24-year experience.
    Author: Kline DG, Kim D, Midha R, Harsh C, Tiel R.
    Journal: J Neurosurg; 1998 Jul; 89(1):13-23. PubMed ID: 9647167.
    Abstract:
    OBJECT: The purpose of this retrospective clinical study was to present results and provide management guidelines for various types of sciatic injuries. METHODS: Over a 24-year period, 380 patients with sciatic nerve injuries were managed. In 230 patients (60%), the injury was at the buttock level, with injection injuries comprising more than half of these cases. Thigh-level sciatic injury was evaluated in 150 cases (40%) and was usually secondary to one of four main causes: 1) gunshot wound; 2) femur fracture; 3) laceration; or 4) contusion. Patients with partial deficits uncomplicated by severe pain or with significant spontaneous recovery or late referral were managed medically. Surgical exploration was not indicated in 23% of injuries at the thigh level and almost 50% of those at the buttock level. Most of these patients achieved partial but good spontaneous recovery, especially in the tibial division distribution. Surgical intervention was required for more complete and persistent deficits in either the tibial or peroneal distribution. Divisions of the sciatic nerve were split apart and evaluated independently. Management was guided by nerve action potential (NAP) recordings, which indicated whether neurolysis or resection of the lesion was required. Repair was then made by using sutures or more frequently by graft placement. In most cases in which neurolysis was performed because a positive NAP was recorded distal to the lesion, useful function was found in the peroneal distribution. Unfortunately, significant recovery occurred in only 36% of patients who received suture or graft repairs of the peroneal division. Good-to-excellent outcome was common for the tibial division, even in cases in which repair was proximal and required lengthy grafts. The relatively favorable recovery of tibial as opposed to peroneal divisions of the sciatic nerve occurred regardless of the level or mechanism of injury. CONCLUSIONS: Surgical exploration and, when necessary, repair of sciatic nerve injuries is worthwhile in selected cases.
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