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Table 1 Comparison of spinal-pelvic sagittal parameters in sitting versus standing position

From: Differences in standing and sitting spinopelvic sagittal alignment for patients with posterior lumbar fusion: important considerations for the changes of unfused adjacent segments lordosis

Parameters

Floating fusion group

Lumbosacral fusion group

Standing

Erect sitting

Natural sitting

P (ANOVA)

Standing

Erect sitting

Natural sitting

P (ANOVA)

PI (°)

49.4 ± 9.0a

50.4 ± 9.3a

49.5 ± 8.7a

0.905

47.3 ± 9.1a

48.3 ± 10.0a

49.4 ± 10.7a

0.648

PT (°)

15.8 ± 6.5a

20.4 ± 8.8a

25.6 ± 10.5b

0.001

16.0 ± 6.0a

19.9 ± 10.1a

26.2 ± 10.0b

< 0.001

SS (°)

33.6 ± 9.0a

30.0 ± 7.8a

23.9 ± 8.1b

0.001

31.1 ± 6.7a

28.2 ± 9.0a

23.0 ± 9.0b

< 0.001

LL (°)

45.9 ± 10.4a

38.5 ± 10.8b

31.5 ± 11.9c

< 0.001

41.8 ± 10.9a

35.1 ± 13.2b

29.0 ± 13.1c

< 0.001

TK (°)

32.7 ± 10.8a

31.1 ± 12.7a

35.2 ± 11.5a

0.468

30.2 ± 10.6a

28.4 ± 11.6a

33.2 ± 11.1a

0.160

URL (°)

8.8 ± 6.9a

4.6 ± 6.7a

1.0 ± 8.0b

0.002

13.3 ± 10.7a

4.6 ± 10.6b

− 0.5 ± 9.1c

< 0.001

LRL (°)

14.1 ± 5.8a

11.7 ± 6.4a

8.0 ± 5.4b

0.002

 

TPA (°)

11.4 ± 7.2a

18.0 ± 7.8b

24.6 ± 9.4c

< 0.001

12.4 ± 4.9a

17.6 ± 8.9b

25.1 ± 8.9c

< 0.001

  1. ANOVA indicates analysis of variance
  2. a, b, crepresented the same significance subset with post hoc comparisons