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Table 2 Radiographic changes of disc height on plain radiographs

From: Risk factor analysis of disc and facet joint degeneration after intersegmental pedicle screw fixation for lumbar spondylolysis

  Pre-operation Post-operation t value p value
DH (L4/5) 14.17 ± 1.74 14.01 ± 2.23 0.760 0.451
DHI (L4/5) 0.381 ± 0.03 0.370 ± 0.04 1.993 0.051
DH (L5S1) 14.13 ± 1.90 13.82 ± 2.03 1.712 0.093
DHI (L5S1) 0.389 ± 0.05 0.380 ± 0.05 1.772 0.082
  1. DH, disc height; DHI, disc height index