Table 2 Comparison of slip parameters between group L and group NL

Translation in the sagittal plane (%)

(SP)

 Flexion

20.3 ± 11.8

18.3 ± 10.1

0.862

 Extension

19.5 ± 11.1

14.8 ± 8.3

0.217

Translation in the coronal plane (%)

(SP)

 Left bending

12.8 ± 6.4

9.9 ± 4.1

0.148

 Right bending

14.2 ± 7.4

9.2 ± 3.2

0.01*

Angulation in the sagittal plane (°)

(SA)

 Flexion

3.9 ± 1.4

4.8 ± 2.4

0.005*

 Extension

6.1 ± 2.5

5.2 ± 1.5

0.046*

Angulation in the coronal plane (°)

(SA)

 Left bending

4.9 ± 1.9

3.1 ± 1.0

0.01*

 Right bending

6.3 ± 1.5

2.2 ± 0.8

0.021 *

Disc height on neutral radiographs

(mm)

 ADH

9.7 ± 1.1

9.4 ± 1.1

0.952

 PDH

9.1 ± 0.9

9.2 ± 0.7

0.825

 LDH

8.7 ± 0.7

8.4 ± 0.7

0.921

 RDH

9.6 ± 0.9

9.3 ± 0.7

0.357

Angle of Lumbar lordosis (LL) (°)

2.3 ± 0.7

4.2 ± 0.5

0.034*