Clawing of the great toe is a disabling complication of some cases of poliomyelitis and other forms of paralysis. It can be satisfactorily corrected and relapse can be prevented by transplantation of half or all of the flexor digitorum longus tendon into the extensor hallucis longus tendon. If the other four toes are also deformed, they are best treated by looping their extensor tendons around the neck of one of the metatarsals.