Neuromuscular Disorders USMLE Step 1 Practice Question
A 25-year-old man develops right foot drop and difficulty dorsiflexing the foot after wearing a tight leg cast for 5 days. Vital signs are stable (BP 120/80, HR 78, RR 16). Examination reveals sensory loss over the dorsum of the foot and lateral shin, with preserved ankle reflexes. Nerve conduction studies show slowed conduction velocity across the fibular head. He denies pain or swelling. Which nerve is most likely compressed?
Answer choices
- ASuperior gluteal nerve
- BTibial nerve
- CFemoral nerve
- DCommon peroneal nerveCorrect answer
- EObturator nerve
- FSural nerve
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