Fig. 1

Example lateral radiographs in stand, contra-lateral step-up and flex seated positions showing spinopelvic parameters of interest: pelvic tilt (PT), sacral slope (SS) and lumbar lordotic angle (LLA).

Example lateral radiographs in stand, contra-lateral step-up and flex seated positions showing spinopelvic parameters of interest: pelvic tilt (PT), sacral slope (SS) and lumbar lordotic angle (LLA).