Fig. 9.

The pelvic inclination angle. The values of the sc-s line measure the pelvic inclination angles at different degrees of tilt (different for men and women). Neutral: 0°, tilt (men—3.2 cm, women—4.7 cm). Inclination (inlet view): positives values (greater than neutral sc-s values). Reclination (outlet view): negative values (less than neutral sc-s values). Using this graph, the degree of pelvic tilt can be determined by measuring the sc-s line (modified with permission from Siebenrock et al. [8], Fig. 4)