Abstract
The acetabular dysplasia is pathological condition that acetabulum is incomplete growth compared to healthy people. In other words it is not possible to sufficiently cover the femoral head. In everyday life movement of the hip joint is indispensable and life while always felt the pain and discomfort is significant failure. Further, by that operation to protect the hip by pain, which can cause a secondary disability. So a variety of treatments exist for acetabular dysplasia. The acetabular shelf arthroplasty is also one of them. It is a surgery to increase the load area transplanted with autologous bone. It has feature that is excellent in improving postoperative pain. In this study, subjected to acetabular shelf arthroplasty in a patient with acetabular dysplasia, create a 3D model from CT images of postoperative preoperative, then investigated the effect by using the finite element method. As a result, the variance of the stress has been confirmed. It can be said that the acetabular shelf arthroplasty is an effective means for acetabular dysplasia.
