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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