Table 3 Comparison of clinical outcome according to surgical technique

VAS score, neck

 Pre

 F/U

 Pre VS. F/U

4.28 ± 1.39

2.42 ± 1.05

<0.001*

3.61 ± 1.80

1.45 ± 1.18

<0.001*

0.062

0.001*

VAS score, arm

 Pre

 F/U

 Pre VS. F/U

5.42 ± 1.38

3.19 ± 1.01

<0.001*

5.38 ± 1.58

2.81 ± 1.25

<0.001*

0.738

0.175

NDI score

 Pre

 F/U

 Pre VS. F/U

25.06 ± 5.91

14.44 ± 6.37

<0.001*

23.06 ± 4.71

11.29 ± 3.65

<0.001*

0.175

0.043*

JOA score

 Pre

 F/U

 Pre VS. F/U

11.03 ± 1.63

14.03 ± 1.25

<0.001*

11.65 ± 1.52

14.55 ± 1.09

<0.001*

0.096

0.069

RR (%)

46.19 ± 30.59

50.58 ± 27.20

0.491