Figure 1.

(A) Female patient, 55-year-old, suffering from chronic low back pain for 2 years, HIZ in 2 segments (L3/4, L4/5, and L5/S1) on MRI. (B) Lateral view of X-ray after discography showed that the contrast agent entered into the outer annulus and some into the outer layer of annulus, also into the epidural space. (C–E) CT following discography showed that the annulus in 3 intervertebral discs underwent tears, L4/5 (D) and L5/S1 (E) intervertebral discs had positive pain response, L3/4 (C) intervertebral discs had negative pain response. (F) Internal fixation and fusion of L4/5 and L5/S1 intervertebral discs were performed without interfering with L3/4 intervertebral discs and low back pain released completely after the operation.