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Table 5 Radiographic measures- Canal dimension (CSA and diameter of dural sac) changes evaluated on pre-and postoperative MRI

From: Comparison of radiological changes after single- position versus dual- position for lateral interbody fusion and pedicle screw fixation

Characteristic

Assessment time

DP group

SP group

p-value

CSA (mm2)

Pre

55.3 ± 34.3

54.7 ± 21.1

0.463

Post (2 wk)

78.4 ± 38.1

77.2 ± 41.1

0.764

Pre→ 2 wk change

21.9 ± 23.2

22.6 ± 28.1

0.684

Diameter (mm)

Pre

5.9 ± 2.6

5.6 ± 2.4

0.990

Post (2 wk)

7.9 ± 2.4

7.7 ± 2.1

0.826

Pre→ 2 wk change

2.0 ± 2.2

2.1 ± 2.0

0.925

  1. All values are in mean ± standard deviation
  2. DP dual position, SP single position, CSA cross-sectional spinal canal area