Formative Dysplasia of the hip is a typical hip condition that effects around 1-3% of recently conceived kids. In addition, it is the principle reason representing around 29% of essential hip replace‌ments up to the sixties old enough. The administration of formative dysplasia of the hip principally attempts to early analyze, to begin the treatment. Concentric decrease of the hip, and sufficient inclusion of the acetabular rooftop are the determinants of treatment whether the hip is set up, subluxated, or profoundly disjoined. Open decrease alone may give industrious decrease to quite a long while; nonetheless, the absence of sufficient bony rooftop over the femoral head would cause biomechanical issues in adulthood. Conversely, Dega osteotomy gives much better inclusion and the end-product would be more anatomical, which may keep the youngster from growing further joint issues later on. This investigation was completed at Benha University Hospital on two gatherings as follows: Group A: 10 patients went through open decrease with DEGA, Group B: 10 patients went through open decrease without DEGA. Mean age of the investigation populace was 21 months in bunch A, 19 months in bunch B. The influenced side was correct side (50.0%) while left side was 50.0%. The IHDI middle of the two gatherings was grade 1 in bunch, some time it was grade 3 in bunch B. At a half year, acetabular record was essentially higher in bunch B (49) contrasted with bunch A (38). P esteem was <0.001. There was no critical distinction between the two gatherings pre-operatively. Concerning, Dislocation was fundamentally higher in bunch B (50.0%) contrasted with bunch A (0.0). P esteem was 0.033.