Radiologic and operative characteristics
| Characteristics | No. | Percent/Range |
|---|---|---|
| Treated vertebrae (thoracic/lumbar) | 140 (71/69) | |
| No. of metastatic vertebrae treated for each patient | ||
| Single | 53 | |
| 2 | 30 | |
| 3 | 5 | |
| 4 | 3 | |
| Type of destruction (osteolytic/mixed) | 114/26 | |
| Posterior wall involvement | 49/140 | 35% |
| Vertebral body compression | 52/140 | 37% |
| Ablation power (mean) (range) (W) | 29.3 (SD, 4.39) | 20–40 |
| Ablation time (mean) (range) (min) | 3.48 (SD, 1.36) | 2–5 |
| Cement filling rate of the lesion | ||
| 50%–75% | 35 | 25% |
| 75%–90% | 53 | 37.9% |
| ≈100% | 52 | 37.1% |
| Cement leakage | 42/140 | 30% |
| Diskal | 12 | |
| Epidural | 6 | |
| Paravertebral | 20 | |
| Foramina | 3 | |
| Access track | 4 | |
| Volume of cement for each vertebra (mean) (range) (mL) | 5.4 (SD, 2.4) | 2–8 |