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Crush syndrome of the upper extremity.

Crush syndrome is the severe systemic manifestation of prolonged muscle compression and compartment syndrome. Careful patient assessment, early diagnosis, and aggressive treatment are vital to prevent multiorgan failure and death. Medical management of systemic complications, along with operative procedures of fasciotomy and debridement, are indicated with accompanying compartment syndrome. Debridement of necrotic and nonviable tissue is necessary; significant risks of infection and hemorrhage remain until the wounds can be subsequently closed or covered with skin graft. Crush syndrome and muscle necrosis in a closed injury without compartment syndrome may be followed clinically until healing or demarcation of a gangrenous part occurs, providing the patient's general medical condition, including renal function, can be maintained. Fasciotomy and hyperbaric oxygen will not reverse necrosis of muscle in the absence of compartment syndrome and therefore do not affect outcome of the extremity. Overall, prognosis is improved by early diagnosis and treatment, but outcome of the crushed extremity is poor and Volkmann's contracture often results.