Fig. 9From: Standard radiographic values for the acetabulum in Japanese adolescents: a cross-sectional studyPeak-to-edge distance. A horizontal line is drawn parallel to the transverse axis of the pelvis through the apex of the acetabulum. The apex point is the most proximal point of the dome. The peak-to-edge distance is measured as the horizontal distance from the apex to the acetabular edge (indicated by the left/right arrow)Back to article page