Table 2 Clinical outcomes

JOA scores

 Preoperation

9.539±1.266

9.487±1.677

9.455±1.440

0.957

13.231±1.739*

13.189±2.196*

12.909±2.700*

1.000

 Follow-up

13.231±1.878*

13.243±1.571*

12.545±1.753*

0.301

JOA recovery rate (%)

 Preoperation

51.200±15.464

51.193±23.040

49.350±25.398

0.981

50.690±18.321

50.243±17.529

43.035±15.395

0.186

VAS scores

 Preoperation

5.231±1.641

4.973±1.756

5.273±1.679

0.861

3.000±1.225*

2.730±1.170*

2.909±1.221*

0.804

 Follow-up

2.615±0.768*^B

1.919±1.064*

2.727±1.104*^B

0.034