29 July 2021 : Clinical Research
Efficacy of Single Level Versus Double Levels Surgery of Percutaneous Disc Nucleoplasty (PDN) Approach in Treating Lumbar Disc Herniation
Haidong Yin1BCDEF, Xinmei Zhang2BCEF, Zhiping Huang3BCD, Yang Song2BCF, Qingan Zhu3ADEG*DOI: 10.12659/MSM.930000
Med Sci Monit 2021; 27:e930000
Table 2 Visual analog scale scores of leg pain for patients in the single-level group and double-level group. P values: single-level group vs double-level group.
| Characteristics | Single level group (n=75) | Double levels group (n=30) | Control group (n=184) | P value |
|---|---|---|---|---|
| VAS score of leg pain | ||||
| Pre-operation | 6.4±2.2 | 6.7±2.4 | 4.8±1.8 | 0.65 |
| 1 month post-operation | 2.5±0.6 | 2.9±0.7 | 2.7±1.9 | 0.29 |
| 6 months post-operation | 2.7±0.3 | 3.4±0.2 | 2.9±1.7 | 0.02 |
| 12 months post-operation | 2.8±0.2 | 3.5±0.3 | 2.5±1.5 | 0.01 |
| 24 months post-operation | 2.7±0.4 | 3.7±0.3 | 2.4±1.6 | 0.01 |
| Final follow-up | 2.9±0.3 | 3.9±0.4 | 2.3±1.7 | 0.007 |