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Results of the anesthetic block according to the type of post-fusion pain, similar to or different from the preoperative pain
| N =40 | Positive blocks | Negative blocks |
|---|---|---|
| Different pain (15) | 9 (60%) | 6 (40%) |
| Similar pain (25) | 5 (20%) | 20 (80%) |
Fischer’s test: 0.017
