Figure 4.

X-ray image of Case 2: Frontal view in standing position. The obturator foramen appeared large, the pelvis was tilted posteriorly, and the curvature of the acetabulum and femoral head were different.

X-ray image of Case 2: Frontal view in standing position. The obturator foramen appeared large, the pelvis was tilted posteriorly, and the curvature of the acetabulum and femoral head were different.