Fig. 1From: Spinal sagittal imbalance in patients with lumbar disc herniation: its spinopelvic characteristics, strength changes of the spinal musculature and natural history after lumbar discectomyThirty-three year-old man with L4/5 disc herniation (patient No.2). a Preoperative lateral radiograph showed sagittal imbalance. (SVA 18.3 cm). b Immediately after surgery, radiograph showed restored sagittal balance. (SVA −0.5 cm). c, d MRI revealed L4/5 disc herniation with impingement of the left L5 nerve root. e Lateral radiograph taken 2.5 years after surgery showed sagittal balance. (SVA 0.5 cm)Back to article page