Fig. 4

A 64-year-old male patient with L4/5 lumbar spondylolisthesis (Meyerding grade I) in MIS-TLIF group. (A) Preoperative lateral X-ray films; (B) Lateral X-ray films at 3 days after operation showed that the spondylolisthesis had been reduced; (C) CT at 3 months after operation showed that the intervertebral bone graft was sufficient and the position of the Cage was good; (D) Lateral X-ray films at 1 years after operation showed good reduction of vertebral bodies and bony fusion between vertebral bodies