Fig. 4From: 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 fixationAdjacent segment degeneration of the cephalad spinal disk. A significant difference in cephalad spinal disk degeneration in the adjacent segment was observed with PS-PLIF as compared with CBT-MIDLIF (p < 0.001) at the last follow-upBack to article page