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Association between type of procedure and success rate
| Overall | First repair | |||
|---|---|---|---|---|
| Success | Fail | Success | Fail | |
| Trans-vaginal approach | 1 | 0 | 1 | 0 |
| Trans-anal fistulectomy | 20 | 15 | 13 | 13 |
| Advanced flap | 16 | 12 | 14 | 9 |
| Martius flap | 6 | 4 | 6 | 3 |
| Gracilis interposition | 1 | 2 | 0 | 2 |
| Trans-perineal approach | 1 | 2 | 1 | 1 |
