Table 3.
Scores for the VAS, JOA, and JOABPEQ
| Pre-operative | 3-month post-operative scores | 1-year post-operative scores | 3-year post-operative scores | |
|---|---|---|---|---|
| VAS | ||||
| Lumbago | 5.4 ± 3.1 | 1.6 ± 1.5** | 1.4 ± 1.2** | 0.5 ± 0.5** |
| Buttock–leg pain | 7.5 ± 2.4 | 1.1 ± 1.8** | 1.1 ± 1.5** | 0.5 ± 0.7** |
| Numbness | 5.7 ± 3.4 | 1.4 ± 1.6** | 0.7 ± 0.9** | 0.4 ± 0.5** |
| JOA score | ||||
| Score | 10.0 ± 4.6 | 27.5 ± 1.3* | 28.4 ± 1.0* | 28.6 ± 0.7* |
| (Recovery rate) | (92.6%) | (96.8%) | (97.9%) | |
| JOABPEQ (effective rate) | ||||
| Low back pain | 29.9 ± 27.4 | 81.5 ± 24.7** (87.1%) | 91.7 ± 17.0** (93.5%) | 99.1 ± 5.2** (96.8%) |
| Lumbar function | 47.0 ± 30.6 | 87.1 ± 15.2** (80.1%) | 91.5 ± 10.1** (93.5%) | 99.5 ± 3.1** (100%) |
| Walking ability | 38.9 ± 27.1 | 85.8 ± 20.6** (90.3%) | 95.7 ± 8.4** (100%) | 99.5 ± 1.7** (100%) |
| Social life function | 32.3 ± 22.9 | 71.0 ± 22.3** (87.1%) | 84.1 ± 15.2** (90.3%) | 91.2 ± 13.1** (96.8%) |
| Mental health | 50.2 ± 16.8 | 65.7 ± 13.6** (29.0%) | 66.0 ± 18.3** (48.4%) | 81.4 ± 14.8** (74.2%) |
These items were evaluated pre-operatively, 3 months, 1 year, and 3 years post-operatively. Values are expressed as means ± standard deviations. Statistical analysis was performed using one-way analysis of variance followed by Bonferroni’s multiple comparison test. Data are expressed as mean ± standard deviation
Recovery rate (%) = (Post-operative score − pre-operative score)/(29 − Pre-operative score) × 100
*P = 0.001 and **P < 0.001