Fig 5.

Anteroposterior radiographic assessment of both hips. In order to measure the lateral center edge angle (LCE) (A), determine the center of the femoral head using a circle tool. Using an angle measurement, a line is drawn from the center of the femoral head vertically that parallels the longitudinal pelvic axis. (B) The LCE is created by an intersection angle between the first line and one drawn from the outermost weight-bearing aspect of the lateral edge of the acetabular socket or pincer lesion.