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Table 2 Patient demographic data 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

Age (year)

51.9 ± 9.0

53.8 ± 9.9

0.27

Male Gender

27/33

25/34

0.92

Hypertension

12/60

9/59

0.50

Diabetes

6/60

8/59

0.55

Smoker

16/60

12/59

0.42

Follow-up (month)

38.4 ± 13.6

35.1 ± 7.9

0.11

Segements

  

0.52

 C3-C5

5

2

 

 C4-C6

27

28

 

 C5-C7

28

29

 

Kellgren Grading Standards

  

0.76

 0

7

5

 

 1

11

13

 

 2

37

34

 

 3

51

46

 

 4

14

20

 

Operative time (min)

110.8 ± 24.2

102.7 ± 29.5

0.10

Blood loss (ml)

93.8 ± 42.1

88.5 ± 37.4

0.47

Complications

2/60

1/59

1.00

Neck VAS (point)

 Preoperative

5.7 ± 2.0

5.3 ± 2.1

0.29

 Postoperative

3.4 ± 1.7*

3.1 ± 1.8*

0.54

1 year follow-up

2.6 ± 1.5*

2.5 ± 1.6*

0.81

Final follow-up

1.9 ± 1.0*

2.0 ± 0.9*

0.57

Arm VAS (point)

   

Preoperative

6.4 ± 1.9

6.7 ± 1.8

0.38

Postoperative

3.3 ± 1.6*

3.1 ± 1.5*

0.48

1 year follow-up

2.1 ± 1.2*

1.9 ± 1.1*

0.35

Final follow-up

1.8 ± 0.6*

1.7 ± 0.7*

0.40

NDI

   

 Preoperative

29.9 ± 13.1

32.4 ± 12.3

0.29

 6 months follow-up

15.9 ± 10.1*

17.2 ± 11.5*

0.51

 Final follow-up

11.2 ± 7.4*

10.5 ± 6.9*

0.60

  1. VAS 10-point visual analog scale, NDI Neck Disability Index
  2. * Compared with preoperative (P < 0.05)