Fig. 5From: Standard radiographic values for the acetabulum in Japanese adolescents: a cross-sectional studySharp angle. To determine the Sharp angle, a line is drawn connecting the inferior teardrop point and the lateral rim of the acetabulum. A second line is drawn parallel to the transverse axis of the pelvis through the inferior teardrop point. The Sharp angle is created by the intersection of these two linesBack to article page