Orthopedic Board Practice Questions - Saudi Board Orthopedic Surgery Final Written Exam

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A 32-year-old male sustains a closed tibia-fibula fracture. Six hours after splinting, he reports escalating pain out of proportion to the injury. On examination, there is severe pain with passive stretch of the toes, but distal pulses are palpable. What is the most sensitive diagnostic threshold for acute compartment syndrome?

Delta pressure (diastolic BP minus compartment pressure) less than 30 mmHg Absolute compartment pressure greater than 45 mmHg Absence of distal pulses and capillary refill Loss of sensation in the first webspace

Correct Answer:

Delta pressure (diastolic BP minus compartment pressure) less than 30 mmHg

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