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Table 2 Cephalad adjacent segment degeneration–CBT Group VS. PS Group

From: 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 fixation

Variable Pre-operative 6 months FU Last FU
mean ± SD mean ± SD p Value mean ± SD p Value
CBT Group N = 74 ISH (mm) 11.52 ± 2.37 11.44 ± 1.94 0.53 11.20 ± 1.82 0.00
FH (mm) 20.85 ± 2.95 20.41 ± 2.57 0.24 20.16 ± 2.43 0.00
FW (mm) 11.88 ± 2.73 11.91 ± 2.67 0.86 11.40 ± 2.58 0.02
ROM (°) 11.63 ± 1.92 11.99 ± 1.62 0.15 12.52 ± 2.01 0.03
PS Group N = 114 ISH (mm) 12.08 ± 1.58 11.15 ± 1.79 0.00 10.60 ± 1.92 0.00
FH (mm) 20.56 ± 4.17 19.35 ± 2.82 0.00 18.40 ± 2.81 0.00
FW (mm) 12.42 ± 2.12 11.26 ± 1.69 0.00 10.11 ± 2.00 0.00
ROM (°) 12.05 ± 2.21 12.93 ± 1.90 0.00 14.75 ± 1.53 0.00