Clinical Reasoning: A 51-year-old woman with acute foot drop

摘要

A 51-year-old woman presented with sudden onset of weakness in her right leg and paresthesiae in the dorsum of her right foot. The symptoms began abruptly 2 hours earlier during her daily work as a housekeeper when she suddenly noticed a double tap sound on each step of her right foot. She denied any history of trauma to the lumbar spine or to the affected lower extremity. She had no habits such as crossing her legs, kneeling, or squatting.