To ensure concentric reduction of the hip, and to continue this reduction are the main goals in the treatment of developmental dysplasia of the hip (DDH). Static hip orthosis, such as hip abduction brace can be used in reduced and dysplastic hips to improve the maturation, whereas dynamic hip flexion and abduction orthosis, such as Pavlik harness can be used in decentralized hips for reduction, as a first choice. If the reduction cannot be ensured in the third week after the application of Pavlik, instead of continuing the treatment, closed reduction under general anesthesia with arthrographic evaluation and cast immobilization in human position is recommended.