Table 9.
Intradiscal and intracanal techniques, outcomes non-controlled studies
| Outcome measure (instrument) | Studies | Outcome median (min–max) |
|---|---|---|
| Pure intradiscal technique 14 studies (n = 1,267) intradiscal technique | ||
| Pain leg (VAS) | 2 (n = 66) | 83% (78–88%) improvement |
| Pain back (VAS) | 1 (n = 25) | 75% improvement |
| Pain (region not specified) (VAS) | 1 (n = 66) | 85% improvement |
| GPE (MacNab) | 3 (n = 279) | 85% (78–89%) satisfactory |
| 6.5% (3.7–11%) poor | ||
| Recurrence | 3 (n = 217) | 0.7% (0–5.1%) |
| Complication | 12 (n = 1,206) | 5.3 % (0–40%) |
| Re-operation | 14 (n = 1,267) | 7.5% (1.3–30%) |
| Intracanal technique 16 studies (n = 4,985) | ||
| Pain leg (VAS) | 5 (n = 1,524) | 88% (65–89%) improvement |
| Pain back (VAS) | 4 (n = 1,408) | 70% (13–84%) improvement |
| Pain (region not specified) (VAS) | 2 (n = 78) | 67% (63–70%) improvement |
| GPE (MacNab) | 12 (n = 2,292) | 86% (72–93%) satisfactory |
| 6% (0.3–9.3%) poor | ||
| Recurrence | 10 (n = 2,395) | 3.2% (0–12%) |
| Complication | 17 (n = 5,362) | 2.1% (0–17%) |
| Re-operation | 15 (n = 3,098) | 4.6% (0–27%) |
Outcomes: MacNab MacNab score as described by MacNab [39]. The sum of ‘excellent’ and ‘good’ outcomes are labelled ‘satisfactory’, GPE global perceived effect