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Volar wrist laceration with nerve/tendon injury — MCCQE Part 1 MCQ

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ModerateTraumaVolar wrist laceration with nerve/tendon injuryMCCQE Part 1

A 28-year-old man has a volar wrist laceration after a bar fight. Cannot flex the DIP of index finger. Diminished sensation in radial 3.5 digits. Which structures are injured?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: B — FDP tendon and median nerve

Loss of DIP flexion = FDP injury. Radial 3.5 digit sensation = median nerve. Volar wrist anatomy places median nerve between FDS and FDP. Urgent surgical repair within 24 hours.

Reference: https://mcc.ca/objectives/medical-experts/