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Long thoracic nerve palsy — MSRA MCQ

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HardShoulder InjuriesLong thoracic nerve palsyMSRA

A 24-year-old boxer has a visible winged scapula after a blow to the lateral chest wall. Shoulder elevation is weak above 90 degrees and sensation is intact. What is the most likely diagnosis?

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Correct answer: C — Long thoracic nerve palsy

Serratus anterior weakness from long thoracic nerve palsy produces medial scapular winging and difficulty with overhead elevation. Sensation is usually intact because the nerve is primarily motor. The mechanism may be traction, compression or direct trauma.

Reference: Brukner & Khan