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Abstract
Developmental dysplasia of the hip is the preferred term to describe the condition in which the femoral head has an abnormal relationship to the acetabulum it includes frank dislocation, partial dislocation (subluxation), instability and inadequate formation of the acetabulum. Because many of these findings may not be present at birth, the term developmental more accurately reflects the biologic features than does the term congenital. The goal of orthopedic management is to identify dysplasia at the earliest possible time and to apply treatment methods designed to normalize the hip, which includes treatment with a Pavlik harness or other device. Although there are many obstacles for closed reduction and hip spica cast application for cases of developmental dysplasia of the hip in older child, still we can achieve satisfactory results in properly selected cases which must be observed carefully until skeletal maturity. The orthopedic surgeon must be aware of the possible complications either early or late and should not hesitate to perform appropriate secondary procedures depending on the development of the hip joint after reduction during the follow up period