Table 4 Comparison of VAS and ODI between the IS and S2AI groups
Clinical Outcomes | IS | S2AI | p |
|---|---|---|---|
VAS (back) | |||
 Preop | 7.97 ± 2.81 | 7.55 ± 3.12 | 0.474 |
 3 mos postop | 3.37 ± 1.41 | 3.19 ± 1.14 | 0.515 |
 Last follow-up | 3.39 ± 1.2 | 3.92 ± 1.36 | 0.044 |
VAS (leg) | |||
 Preop | 7.12 ± 1.93 | 7.31 ± 2.52 | 0.652 |
 3 mos postop | 3.41 ± 2.12 | 3.32 ± 1.84 | 0.830 |
 Last follow-up | 3.52 ± 1.03 | 3.95 ± 1.12 | 0.046 |
ODI | |||
 Preop | 49.54 ± 21.25 | 48.24 ± 19.67 | 0.760 |
 3 mos postop | 18.31 ± 2.96 | 17.96 ± 1.43 | 0.525 |
 Last follow-up | 21.64 ± 7.63 | 24.37 ± 5.94 | 0.068 |