Fig. 5From: Analysis of measurement changes in pelvic incidence according to pelvic rotation using a three-dimensional modelHorizontal and vertical rotation of the sagittal plane with a 3D sketch; A The center point of the line connecting the center of the S1 endplate and the center of the femoral head was defined. B and C The planes were tilted to 5° angular intervals (the horizontal and vertical rotation of the pelvis: 0°, 5°, 10°, 15°, 20°, 25°, 30°, 35°, and 40°) for the sagittal plane based on the vertical and horizontal reference linesBack to article page