Delayed presentation of acute compartment syndrome after contusion of the thigh.

Acute compartment syndrome has been described as a result of thigh contusion in several contact sports, and emergent fasciotomy has routinely been recommended. However, recent data suggest that thigh contusions in athletes presenting with isolated elevation of compartment pressures in the absence of neurovascular deficits may be treated expectantly. We describe a case of anterior thigh contusion, which initially presented with isolated compartmental hypertension without neurovascular symptoms. Under nonoperative treatment the patient developed delayed acute compartment syndrome from persistent muscular hemorrhage ten days after the initial trauma, requiring operative treatment. This case demonstrates that expanding hematoma formation may result in delayed increase of intramuscular pressures and compromise of myoneural perfusion in patients with severe thigh contusions. Early evacuation of the hematoma may help to prevent late development of compartment syndrome and reduce the risk for long-term complications.