Skip to main content
Fig. 1 | BMC Musculoskeletal Disorders

Fig. 1

From: Degeneration of three or more lumbar discs significantly decreases lumbar spine/hip ROM ratio during position change from standing to sitting in AVN patients before THA

Fig. 1

Anteroposterior and lateral EOS imaging and spinopelvic parameters. 1) Pelvic incidence (PI): the angle between the perpendicular plane to the middle of the S1 upper endplate and the line joining this point to the bicoxofemoral axis. 2) Sacral slope (SS): the angle between the horizontal plane and the upper endplate of S1. 3) Pelvic tilt (PT, ▲): the angle of the line connecting the middle S1 upper plate and bicoxofemoral axis to the vertical axis. 4) Lumbar lordosis angle (LL, ★): the angle between the superior endplates of L1 and S1. 5) Femoral slope (Fs, ○): the angle between the axis of the femur and horizontal plane. Hip flexion is expressed as the change in the angle (SS-Fs, □) between SS and Fs. 6) Sagittal vertical axis (SVA): the horizontal distance from the C7 plumb line to posterior superior corner of the superior margin of S1

Back to article page

BMC Musculoskeletal Disorders

ISSN: 1471-2474

Contact us