A recent study from Kyushu University, Japan, evaluated deformity of the entire pelvic bone in hip dysplasia patients and its relation to the hip socket (acetabulum).
The authors carefully examined the pelvis using CT for 50 patients with DDH (82 hips). They compared these examinations with 40 normal hips. Results of this study suggest that structural abnormalities exist throughout the pelvis in DDH, and the abnormalities of the acetabulum are not caused solely by local dysplasia around the hip.
Findings of the above study are important because they identify various changes in the shape of the entire pelvis and not just the articulating surfaces of the hip joint itself. This confirms the experience of most hip preservation surgeons who have learned that the entire shape of the pelvis must be considered in order to obtain the best results. The information in this study should help them individualize their surgery even more in the future.