Fig. 1From: Correlation of tilt of the anterior pelvic plane angle with anatomical pelvic tilt and morphological configuration of the acetabulum in patients with developmental dysplasia of the hip: a cross-sectional studyMeasurement of pelvic parameters. Anatomical SS (a) and anatomical PT (b) were measured per the previous work of Imai et al. [14]. Pelvic parameters: PI, pelvic incidence; SS, sacral slope; APPA, anterior pelvic plane angle; L.ASIS, R.ASIS, left and right anterior superior iliac spine, respectively; PT, pelvic tiltBack to article page