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Posterior hip dislocation after dashboard injury — RCPSC EM MCQ

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ModerateMusculoskeletalPosterior hip dislocation after dashboard injuryRCPSC EM

CTAS 2: A 32-year-old driver has severe hip pain after a dashboard MVC. Vitals are stable. The right leg is shortened, flexed, adducted and internally rotated; distal pulses and peroneal sensation are intact. Pelvic radiograph shows posterior hip dislocation without fracture. What is the most appropriate next step?

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Correct answer: C — Urgent procedural sedation and closed reduction

Native hip dislocation is time-sensitive because avascular necrosis risk rises with delay. Prompt reduction with neurovascular checks is required.

Reference: ATLS; Canadian orthopaedic emergency practice