Fig. 1From: Lumbar spine MRI in upright position for diagnosing acute and chronic low back pain: statistical analysis of morphological changesFast spin echo (FSE) T2-weighted magnetic resonance images (MRI) in the sagittal plane. Lumbosacral angle and lumbar lordosis angle are average values. a Supine position: lumbosacral angle 136.7°, lordosis angle 35.5°. b Upright position: lumbosacral angle 131.7°, lordosis angle 41.6°Back to article page