| Spinal nerve roots in LDP group | F | P-value | |||||
US-Guided LESI (n = 10) | FL-Guided LESI (n = 10) | US-Guided CESI (n = 10) | FL-Guided CESI (n = 10) | Blinding LSPSI (n = 10) | ||||
Baseline VAS | Mean | 6.9 | 7.8 | 7.3 | 7.5 | 8.2 | 1.74 | 0.157 NS |
±SD | 0.9 | 0.9 | 1.6 | 1.1 | 1.2 | |||
VAS at 1 week | Mean | 3.2 | 4.0 | 3.0 | 3.2 | 3.8 | 0.77 | 0.546 NS |
±SD | 1.4 | 1.2 | 2.3 | 1.7 | 0.9 | |||
VAS at 1 month | Mean | 1.9 | 2.4 | 3.0 | 1.9 | 3.2 | 1.18 | 0.332 NS |
±SD | 1.4 | 2.9 | 1.6 | 1.1 | 1.2 | |||
VAS at 2 months | Mean | 1.9 | 2.5 | 3.4 | 2.1 | 4.6 | 3.45 | 0.015 S |
±SD | 1.3 | 3.0 | 2.0 | 1.5 | 1.0 | |||
| Para-Spinal root comparisons | |||||||
P1 | P2 | P3 | P4 | |||||
Baseline VAS | 0.018 S | 0.453 NS | 0.095 NS | 0.192 NS | ||||
VAS at 1 week | 0.393 NS | 0.775 NS | 0.256 NS | 0.393 NS | ||||
VAS at 1 month | 0.106 NS | 0.316 NS | 0.801 NS | 0.106 NS | ||||
VAS at 2 months | 0.003 S | 0.017 S | 0.163 NS | 0.005 S |