Periacetabular osteotomy is a common method for the treatment of adolesan patients with hip dysplasia. This method described by Ganz is globally well-accepted for preserving blood circulation around acetabulum and improving stability. Long learning curve is the most important disadvantage. Some complications including intra-articular fracture, neurologic injury and insufficient correction might be seen in this long period. Hip joint survival for many years with reduced complication rate is possible by skillful utilization of this method.