Patient and surgical characteristics.
| Characteristic | Vertebroplasty (n = 252) | SpineJack (n = 22) | P |
| Age, y, median (IQR) | 75 (62.5–82) | 53 (48–61.5) | <0.001 |
| Sex, n (%) | |||
| Men | 90 (35.8%) | 14 (61.9%) | 0.012 |
| Women | 162 (64.2%) | 8 (38.1%) | |
| BMI, median (IQR) | 24.1 (22–27.5) | 21.7 (20.7–23.4) | 0.03 |
| Regions treated, n | |||
| Thoracic | 127 | 9 | 0.59 |
| Lumbar | 120 | 13 | |
| Sacroiliac | 5 | 0 | |
| No. of levels treated, n | |||
| 1 | 161 | 22 | 0.005 |
| 2 | 54 | 0 | |
| 3 | 20 | 0 | |
| ≥4 | 17 | 0 | |
| Mean No. of treated vertebrae, median (IQR) | 1 (1–2) | 1 (1–1) | 0.001 |
Abbreviations: BMI, body mass index; IQR, interquartile range.
Note: Boldface indicates statistically significant findings at P < 0.05.