Table 1.
Study parameters for conventional freehand or robot-assisted Sacroiliac screw implantation
| Items | Freehand (n = 22) | Robot assisted (n = 23) | χ2 | P |
|---|---|---|---|---|
| Age (years), median (Q1, Q3) | 43.0 (35.0, 52.0) | 36.0 (25.0, 47.0) | 0.911 | 0.340 |
| Sex (male/female), n | 8/7 | 10/5 | 0.556 | 0.710 |
| Median planning time (min) | Not applicable | 7.8 | – | – |
| Operation time (min), median (Q1, Q3) | 104.0 (60.0, 154.0) | 150.0 (75.0, 230.0) | 1.990 | 0.158 |
| Guide wire insertion time (min), median (Q1, Q3) | 19.0 (15.5, 45.0) | 2.0 (2.0, 2.7) | 20.952 | <0.001 |
| Number of guide wire attempts, median (Q1, Q3) | 7.0 (2.0, 9.0) | 1.0 (1.0, 1.0) | 15.771 | <0.001 |
| Intraoperative radiation exposure (s), median (Q1, Q3) | 36.0 (21.5, 48.0) | 6.0 (6.0, 9.0) | 13.590 | <0.001 |