Improvement rate for VAS and ODI scores after percutaneous endoscopic interlaminar pars decompression.
| Improvement Rate | VAS for Leg Pain, n (%) | ODI, n (%) |
| 76%‒100% | 6 (54.55%) | 3 (27.28%) |
| 51%‒75% | 4 (36.36%) | 4 (36.36%) |
| 26%‒50% | 1 (9.09%) | 2 (18.18%) |
| 0%‒25% | 0 | 2 (18.18%) |
Abbreviations: ODI, Oswestry Disability Index; VAS, visual analog scale.