Fig. 4From: Characteristics of three-dimensional acetabular morphology of patients with excellent outcome after rotational acetabular osteotomy over 20 yearsAnteroposterior radiograph and axial slice of the CT data of hip joint. a A hip joint 38 years after RAO in RAO group. Radiograph shows that clinical stage of osteoarthritis remained to be initial, and CT data shows three-dimensional acetabular morphology is not retroverted. b A hip joint 8 years after RAO in THA group. Radiograph shows that clinical stage of osteoarthritis advanced to end-stage, and CT data shows three-dimensional acetabular morphology is significantly retrovertedBack to article page