From 1968 to 1972, twenty-three infants under six months old with twenty-seven dislocated hips were treated with a Pavlik harness. All the dislocations except three were successfully reduced. Only one child required hospitalization. All the patients were followed for more than two years. All but three of the hips were clinically and roentgenographically normal at follow-up, and none had avascular necrosis. In infants, the Pavlik harness successfully utilizes the principle of reduction in flexion, avoiding forced abduction.
Ramsey et al. (1976) studied this question.