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Table 4 Radiographic measures- LL, SDA, SL, and DH changes evaluated on pre-and postoperative X-ray

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

LL (°)

Pre

27.6 ± 13.2

28.2 ± 10.8

0.800

Post (2 M)

30.1 ± 12.5

27.5 ± 9.5

0.522

Pre→ 2 M change

2.6 ± 6.0

−0.7 ± 6.2

0.115

SDA (°)

Pre

3.0 ± 4.1

4.1 ± 4.8

0.129

Post (2 M)

5.4 ± 4.0

6.8 ± 4.1

0.179

Pre→ 2 M change

2.4 ± 4.3

2.7 ± 3.4

0.710

SL (mm)

Pre

0.9 ± 3.8

1.4 ± 3.7

0.669

Post (2 M)

0.4 ± 2.9

0.5 ± 2.4

0.648

Pre→ 2 M change

0.3 ± 1.8

0.8 ± 1.9

0.078

ADH (mm)

Pre

6.8 ± 4.0

9.7 ± 3.5

< 0.01

Post (2 M)

12.2 ± 2.5

13.9 ± 2.5

< 0.05

Pre→ 2 M change

5.8 ± 3.3

4.2 ± 3.5

0.098

PDH (mm)

Pre

4.8 ± 3.1

5.7 ± 2.0

0.093

Post (2 M)

7.7 ± 2.3

8.7 ± 1.7

0.068

Pre→ 2 M change

3.4 ± 2.1

2.8 ± 2.3

0.153

Av DH (mm)

Pre

5.3 ± 3.2

7.9 ± 2.4

< 0.01

Post (2 M)

10.0 ± 1.9

11.3 ± 1.7

< 0.01

Pre→ 2 M change

4.6 ± 2.4

3.5 ± 2.5

0.067

  1. All values are in mean ± standard deviation
  2. LL Lumbar lordosis, SDA Segmental Disc Angle, SL Slipping length, ADH Anterior Disc height, PDH Posterior Disc height, Av DH Average Disc height, DP dual position, SP single position