الفهرس 
Development of the hip joint 3Only 14 pages are availabe for public view
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Abstract
Developmental dysplasia of the hip (DDH) is a wide spectrum of anomalies that ranges from mild acetabular dysplasia to high-riding dislocations. Dislocated hip joint in a child who has began to walk is even more difficult to treat because of adaptive shortening of the extra-articular soft tissues, acetabular dysplasia, capsular constriction, increased femoral anteversion, and fixed inversion of the limbus. Many surgical procedures have been described for the management of these late-presenting cases. In the first part of this study, a review of the literatures was discussed regarding normal growth and development of the hip joint, risk factors of DDH, pathology and pathoanatomy of DDH, diagnosis of DDH in different age group, and short notes about different methods for treatment of DDH in each age group. The aim of the work is to compare the final clinical and radiological results between Dega osteotomy and Salter osteotomy in the treatment of developmental dysplasia of the hip in children between 2 to 10 years to determine the advantages and disadvantages of each to contribute and to determine the best surgical procedure for the treatment plan of this deformity in our practice. Dega or Salter osteotomy may be accompanied with other procedures such as open reduction, caosulorrphy and or femoral osteotomy according to the need for each case. The material of this work consists of twenty cases of neglected DDH. These cases were divided randomly into two groups, Salter group 10 cases and Dega group 10 cases. Each case was evaluated preoperatively, intraoperatively, postoperatively and at the final follow up. The final follow up evaluation was based on clinical evaluation, modified McKay criteria, and radiological evaluation that consisted of; Shenton’s line continuity, acetabular index. Rimier’s migration index, Wiberg’s center edge angle and Severin’s classification. In this study, the comprehensive single-stage approach, which includes open reduction, capsulorraphy, femoral derotation osteotomy with or without shortening and varus, and pelvic osteotomy was performed in all the cases included. No preoperative traction was done for any case. The results were satisfactory, both clinically and radiologically, in both Dega and Salter groups. Though the results were in favor of the Dega osteotomy in the most of the parameters, these differences were statistically insignificant. The results were better in the younger age group than the older age group. There were minimal complications in this study which were within the accepted range. All complications were controlled except the few cases with AVN and residual dysplasia that may need further interference