Static line injury to the military paratrooper's arm occasionally
produces an unusual muscle injury: closed transection of the belly of the
biceps brachii. A review of twenty-eight untreated paratroopers so injured
demonstrated significant residual weakness and deformity. Attempts at late
repair resulted in only minimum improvement. The results of twenty fresh
injuries treated by either surgical repair or aspiration followed by closed
reduction and splinting are presented.