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Table 5 Radiographic measurements(Ā°)

From: Risk factors for upper adjacent segment degeneration after multi-level posterior lumbar spinal fusion surgery

Ā 

Group A (nā€‰=ā€‰22)

Group B (nā€‰=ā€‰49)

P value

Pre-op

ā€ƒLL

34.09Ā Ā±Ā 20.03

32.42Ā Ā±Ā 14.90

0.695

ā€ƒPI

43.64Ā Ā±Ā 10.10

49.29Ā Ā±Ā 10.77

0.042

ā€ƒPT

18.44Ā Ā±Ā 8.80

22.53Ā Ā±Ā 9.44

0.092

ā€ƒSS

26.18Ā Ā±Ā 9.28

26.96Ā Ā±Ā 8.97

0.742

ā€ƒCobba

11.33Ā Ā±Ā 5.24

9.97Ā Ā±Ā 5.33

0.322

ā€ƒĪ”PILLb

9.56Ā Ā±Ā 17.30

17.07Ā Ā±Ā 14.37

0.217

Last follow-up

ā€ƒLL

35.86Ā Ā±Ā 13.66

39.04Ā Ā±Ā 10.61

0.240

ā€ƒPI

47.09Ā Ā±Ā 14.53

49.47Ā Ā±Ā 8.56

0.486

ā€ƒPT

15.20Ā Ā±Ā 9.98

15.16Ā Ā±Ā 6.13

0.985

ā€ƒSS

31.70Ā Ā±Ā 10.67

34.75Ā Ā±Ā 7.96

0.193

ā€ƒCobba

4.43Ā Ā±Ā 2.23

5.30Ā Ā±Ā 2.75

0.199

ā€ƒĪ”PILLb

10.17Ā Ā±Ā 13.73

9.73Ā Ā±Ā 8.63

0.804

  1. aCoronal Cobbā€™s angle
  2. bĪ”PILLā€‰=ā€‰PI-LL