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Table 4 Radiographic outcomes in double-level ACDF

From: Using a mixture of local bone dust and morselized bone as graft materials in single- and double-level ACDF

Variables

Group A (n = 60)

Group B (n = 59)

P value

Fusion rate

 3 months follow-up

  

0.03

 No fusion

53

39

 

 One-level fusion

4

9

 

 Two-level fusion

3

11

 

 6 months follow-up

  

0.01

 No fusion

37

21

 

 One-level fusion

11

15

 

 Two-level fusion

12

23

 

 1 year follow-up

  

0.048

 No fusion

15

6

 

 One-level fusion

20

17

 

 Two-level fusion

25

36

 

 Final follow-up

  

0.46

 No fusion

3

1

 

 One-level fusion

5

3

 

 Two-level fusion

52

55

 

FSH (mm)

 Preoperative

49.1 ± 4.5

48.9 ± 4.2

0.80

 Postoperative

53.4 ± 4.9

52.7 ± 4.0

0.40

 1 year follow-up

51.2 ± 4.1

51.0 ± 3.7

0.78

 Final follow-up

50.5 ± 3.8

50.4 ± 3.6

0.88

Subsidence (mm)

2.9 ± 1.4

2.3 ± 0.8

0.01

Subsidence rate

17/60

10/59

0.14

C2-7 lordosis (°)

 Preoperative

12.9 ± 10.8

11.0 ± 12.4

0.37

 Postoperative

19.1 ± 11.5

18.4 ± 11.9

0.75

 1 year follow-up

17.3 ± 13.4

16.9 ± 12.7

0.87

 Final follow-up

15.4 ± 10.8

17.2 ± 12.4

0.40

SSA (°)

 Preoperative

4.2 ± 5.4

3.9 ± 6.1

0.78

 Postoperative

10.7 ± 6.1

9.3 ± 7.0

0.26

 1 year follow-up

9.2 ± 5.3

8.6 ± 6.5

0.58

 Final follow-up

8.5 ± 4.9

8.2 ± 5.7

0.76

  1. FSH Fusion segmental height, SSA Segmental sagittal alignment