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Treatment modality of the 73 patients.
| Treatment modality | N (%) |
|---|---|
| Gross-total resection | 4 (5.5) |
| Subtotal resection without fixation | 23 (31.5) |
| Subtotal resection with fixation | 34 (46.6) |
| percutaneous radiofrequency ablation + sacroplasty | 12 (16.4) |
