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Diagnosis of patients selected for radiofrequency (n = 25).
| Frequency | Percentage | |
|---|---|---|
| Herniated disc L3-L4 | 1 | 4 |
| Herniated disc L4-L5 | 8 | 32 |
| Herniated disc L5-S1 | 10 | 40 |
| Herniated disc L4-L5 and L5-S1 | 2 | 8 |
| Canal stenosis | 1 | 4 |
| Facet joint hypertrophy | 3 | 12 |
