الفهرس 
Aim of the WorkOnly 14 pages are availabe for public view
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Abstract
Proper growth and development of the acetabulum is due to the presence of the femoral head in adequate contact and without stress within it. the acetabulum needs the femoral head for its development. DDH is the result of the disruption of this relationship.
The hip is considered as a ball and socket joint. For ease of approach we have considered the relevant anatomy under the heading’s Bony anatomy, Ligaments and capsular anatomy, Neurovascular anatomy and Muscular anatomy.
The etiology of DDH proved to be multifactorial including different theories as genetic, mechanical, hormonal, and ligamentous laxity theory.
The pathological changes in DDH affect both the bone (the pelvis, acetabulum, proximal femur, and bones of the leg) and the soft tissue (the capsule, ligaments, and muscles).
The clinical presentation of DDH after walking age is limping. By examination there is positive Galeazi test and limited abduction of the affected limb. Radiological evaluation such as x-rays and CT can be used to evaluate acetabular dysplasia.
Treatment consists of open reduction, capsulorrhaphy accompanied with Dega osteotomy, with or without femoral osteotomy.
Complications of DDH include redislocation, residual acetabular dysplasia, infection and AVN which is a major cause of long term disability after treatment of DDH.
Aprospective study on 24 hips of 21 patients with developmental dysplasia of the hip (DDH) who underwent open reduction, Dega osteotomy with or without VDO and femoral shortening. The mean age of the studied group was (3.2yrs) range (2-5yrs) and the follow up period range (1-2yrs) . There were (25%) bilateral and (75%) unilateral cases.
In this study, the single-stage approach, which includes open reduction, capsulorraphy, Dega osteotomy with or without femoral osteotomy was performed in 24 cases.
Results were evaluated according to modified McKay clinical grading, and Severin’s radiological grading, besides the radiological assessment of acetabular index, centre edge angle, Shenton line continuity and Smith concentric ratio.
Three cases of AVN, one case of femoral fracture and one case of ankle fracture were the complications of this study.