Sciatic neuropathy is an important consideration in the patient with foot drop. Causes of this mononeuropathy include total hip arthroplasty, unusual forms of leg or buttock compression, neoplasms, and a heterogeneous group of other disorders. Partial sciatic nerve injuries often affect the fibular (peroneal) division out of proportion to the tibial division. Electrodiagnostic testing is crucial to evaluate for subclinical involvement of tibial innervated muscles in sciatic neuropathy, which may be only subtly involved on clinical examination.
In this article, Dr. Olivia Tong and Dr. Steven Herskovitz, both of Montefiore Medical Center, summarize the clinical, etiologic, diagnostic, and management issues regarding sciatic neuropathy.
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