![]() It has long been recognized that the peroneal fibers are preferentially affected in most sciatic nerve lesions. ![]() Initially, the clinical presentation most often mimics peroneal neuropathy. ![]() This complete deficit is seen only in severe lesions or late in the course of sciatic neuropathy. The ankle reflex is depressed or absent on the involved side. Pain may be perceived in the proximal thigh, radiating posteriorly and laterally into the leg, but it usually does not affect the back. 36.2), including the lateral knee (lateral cutaneous nerve of the knee), lateral calf (superficial peroneal nerve), dorsum of the foot (superficial peroneal nerve), web space of the great toe (deep peroneal nerve), posterior calf and lateral foot (sural nerve), and sole of the foot (distal tibial nerve). Sensation is lost in several areas ( Fig. Patients with a complete sciatic neuropathy have paralysis of knee flexion and all movements about the ankle and toes. Otherwise, most sciatic neuropathies present in a progressive, subacute fashion. Sciatic neuropathies caused by trauma, injection, infarction, or compression present acutely. Preston MD, in Electromyography and Neuromuscular Disorders, 2021 Clinical ![]()
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