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Acute compartment syndrome — RCPSC EM MCQ

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HardMusculoskeletalAcute compartment syndromeRCPSC EM

A 34-year-old skier has severe lower leg pain after a tibial shaft fracture. The limb is splinted, pulses are present, pain worsens with passive toe extension, and compartment pressure is 42 mmHg with diastolic BP 62 mmHg. What is the most likely diagnosis?

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

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Correct answer: C — Acute compartment syndrome

Pain with passive stretch and a high compartment pressure relative to diastolic pressure indicate acute compartment syndrome despite palpable pulses.

Reference: ATLS orthopaedic trauma principles; Canadian orthopaedic emergency standards