Table 8.
Overall outcome, non-controlled studies
| Outcome measure (instrument) | Studies (patients) | Outcome median (min–max) |
|---|---|---|
| Pain leg (VAS) | 7 (n = 1,558) | 88% (65–89%) improvement |
| Pain back (VAS) | 5 (n = 1,401) | 74% (13–84%) improvement |
| Pain (region not specified) (VAS) | 3 (n = 144) | 70% (63–85%) improvement |
| GPE (MacNab) | 15 (n = 2,544) | 85% (72–94%) satisfactory |
| 6% (0.3–27%) poor | ||
| Functional status (ODI) | 3 (n = 624) | 83% (74–90%) improvement |
| Patient satisfaction | 3 (n = 181) | 78% (75–92%) satisfactory |
| Return to work | 5 (n = 757) | 90% (67–95%) |
| Recurrence | 13 (n = 2,612) | 1.7% (0–12%) |
| Complication | 28 (n = 6,336) | 2.8% (0–40%) |
| Re-operation | 28 (n = 4,135) | 7% (0–27%) |