Table 3
Visual analog scale and Oswestry Disability Index scores.
Outcome Measure
Preoperative
12-mo Follow-up
P
Visual analog scale
8.0 ± 0.9
2.3 ± 0.5
<0.01
Oswestry disability index
43 ± 13.8
22.9 ± 15.2
<0.05