Table 4.
Scores of the patient-based questionnaires before and 1, 3, 6, and 12 months following surgery. Abbreviations: JOABPEQ, Japanese Orthopaedic Association Back Pain Evaluation Questionnaire; ODI, Oswestry Disability Index; RDQ, Roland-Morris Disability Questionnaire; VAS, visual analog scale
| Baseline | 1 month | 3 months | 6 months | 12 months | |
|---|---|---|---|---|---|
| JOABPEQ | |||||
| Pain-related disorder | 34.3 ± 30.2 | 56.5 ± 40.5* | 71.0 ± 34.9* | 61.6 ± 36.8* | 67.7 ± 36.0* |
| Lumbar spine dysfunction | 46.8 ± 29.7 | 50.7 ± 29.4 | 58.3 ± 28.6* | 55.9 ± 32.5* | 63.4 ± 30.9* |
| Gait disturbance | 20.5 ± 20.3 | 42.1 ± 27.1* | 46.4 ± 30.2* | 45.9 ± 33.0* | 45.9 ± 30.2* |
| Social life dysfunction | 34.5 ± 17.8 | 44.9 ± 22.0* | 46.2 ± 20.4* | 45.1 ± 23.8* | 49.8 ± 22.9* |
| Phycological disorder | 38.0 ± 19.6 | 48.2 ± 17.6* | 48.3 ± 15.9* | 45.6 ± 18.2* | 47.0 ± 14.7* |
| ODI | 51.6 ± 16.2 | 35.8 ± 17.0* | 36.4 ± 19.4* | 37.0 ± 20.8* | 31.4 ± 19.5* |
| RDQ | 13.8 ± 4.6 | 9.8 ± 5.7* | 9.1 ± 7.1* | 9.5 ± 7.0* | 8.1 ± 5.9* |
| VAS | |||||
| Low back pain | 7.3 ± 2.4 | 3.7 ± 3.3* | 2.9 ± 3.0* | 3.0 ± 2.7* | 3.7 ± 3.2* |
| Lower limb pain | 7.4 ± 2.6 | 3.5 ± 3.4* | 3.1 ± 3.0* | 3.2 ± 3.3* | 3.2 ± 3.4* |
| Lower limb numbness | 7.2 ± 2.6 | 3.2 ± 3.1* | 3.6 ± 3.4* | 3.8 ± 3.4* | 4.5 ± 3.4* |
* p < 0.05 as compared with baseline