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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

CharacteristicAssessment timeDP groupSP groupp-value
CSA (mm2)Pre55.3 ± 34.354.7 ± 21.10.463
Post (2 wk)78.4 ± 38.177.2 ± 41.10.764
Pre→ 2 wk change21.9 ± 23.222.6 ± 28.10.684
Diameter (mm)Pre5.9 ± 2.65.6 ± 2.40.990
Post (2 wk)7.9 ± 2.47.7 ± 2.10.826
Pre→ 2 wk change2.0 ± 2.22.1 ± 2.00.925
  1. All values are in mean ± standard deviation
  2. DP dual position, SP single position, CSA cross-sectional spinal canal area
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