Fig. 3From: May the midline lumbar interbody fusion (MIDLIF) prevent the early radiographic adjacent segment degeneration? A minimum 3-year follow-up comparative study of MIDLIF in L4/5 with cortical bone trajectory screw versus traditional pedicle screw fixationRadiological studies of a 76-year-old woman with lumbar spinal stenosis after PS-PLIF. a–c Preoperative plain radiographic image and preoperative sagittal magnetic resonance imaging (MRI) scan. Intervertebral space height (ISH): 13.03 mm, foraminal height (FH): 16.40 mm, foraminal width (FW): 9.12 mm, range of motion (ROM): 11.85°, lumbar lordosis (LL): 41.22°, sacral slope (SS): 31.95°, COBB 1: 13.90°, COBB 2: 21.40°, H 2/H 1: 2.61, and Pfirrmann classification of the cephalic lumbar intervertebral disk: grade I. d, e Postoperative plain radiographic images at 6-month follow-up. f–h Postoperative plain radiographic image and preoperative sagittal MRI scan at 38-month follow-up. ISH: 10.17 mm, FH: 14.66 mm, FW: 8.27 mm, ROM: 13.75°, LL: 56.12°, SS: 47.45°, COBB 1: 17.32°, COBB 2: 23.56°, H 2/H 1: 3.69, and Pfirrmann Classification: grade IVBack to article page