Foraminal Stenosis Type | VAS-LP | |||||
Preoperative | Postoperative 1 mo | Postoperative 6 mo | Postoperative 12 mo | Postoperative 24 mo | P | |
Stable type I | 7.35 ± 2.16 | 1.65 ± 0.64 | 1.35 ± 0.44 | 1.12 ± 0.40 | 1.00 ± 0.38 | <0.001 |
Stable type II | 7.70 ± 2.02 | 2.40 ± 0.68 | 2.05 ± 0.55 | 1.35 ± 0.48 | 1.33 ± 0.42 | <0.001 |
Stable type III | 6.52 ± 1.92 | 3.53 ± 1.02 | 2.00 ± 0.76 | 1.11 ± 0.36 | 0.50 ± 0.28 | <0.001 |
Stable type IV | 7.65 ± 1.98 | 2.05 ± 0.82 | 1.05 ± 0.64 | 1.02 ± 0.60 | 1.00 ± 0.52 | <0.001 |
Unstable type I | 7.50 ± 1.78 | 2.16 ± 0.66 | 1.40 ± 0.76 | 0.99 ± 0.58 | 0.87 ± 0.56 | <0.001 |
Unstable type II | 8.05 ± 1.80 | 2.42 ± 0.54 | 2.10 ± 0.82 | 1.35 ± 0.74 | 1.09 ± 0.44 | <0.001 |
Unstable type III | 6.45 ± 1.64 | 1.02 ± 0.48 | 1.33 ± 0.54 | 0.70 ± 0.32 | 0.67 ± 0.26 | <0.001 |
Unstable type IV | 7.10 ± 2.36 | 2.22 ± 0.72 | 2.02 ± 0.68 | 0.75 ± 0.52 | 0.73 ± 0.38 | <0.001 |
Note: Data provided as mean ± SD. P value shows statistical significance between preoperative VAS-LP and VAS-LP 24 mo after surgery.
VAS-LP, visual analog scale leg pain.