Lower extremity compartment syndrome.

Lower extremity compartment syndrome is a devastating complication if not rapidly diagnosed and properly managed. The classic symptoms of compartment syndrome can be deceiving as they occur late. Any concern for compartment syndrome based on mechanism, or the presence of pain in the affected extremity, should prompt a compartment pressure check. Both absolute compartment pressures above 30 mm Hg and a pressure differential of less than 30 mm Hg are used to make the diagnosis. The treatment goal is first to save the patient's life and second to salvage the affected limb. Fasciotomy is the only accepted treatment of compartment syndrome and should be performed quickly after the diagnosis is made. Outcomes after fasciotomy are best when there is no delay in treatment.