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Symptom severity
| Pre-treatment | Post-treatment | |
|---|---|---|
| Severe to very severe pain | No or mild pain | |
| Hansraj et al. [16] | 75 of 77 (97) | 64 of 77 (83) |
| Katz et al. [31] | 213 of 263 (81) | 74 of 199 (37) |
| Simotas et al. (non-op) [48] | 32 of 49 (65) | 12 of 40 (30) |
| Simotas et al. (surgical) [48] | – | 6 of 9 (67) |
| X STOP | 60 of 99 (61) | 57 of 89 (64) |
| NON OP | 53 of 88 (60) | 16 of 78 (21) |
Numbers in parentheses are percentages
