Operative workflow efficiency (duration) in min.5
| Timepoint | Fusion Robotics Group | Mazor-X StealthGroup | P Value |
| System setup | 2.4 ± 0.2 | 7.8 ± 1.2 | <0.05 |
| Create sterile barrier "ready for scan" | 4.3 ± 1.5 | 5.1 ± 1.8 | 0.5 |
| Scan and import | 7.9 ± 2.8 | 7.7 ± 3.1 | 0.9 |
| Create plan | 2.6 ± 0.5 | 2.5 ± 0.5 | 0.8 |
| Plan to in-position for screw 1 | 3.8 ± 0.5 | 12.7 ± 5 | <0.05 |
| Preplacement of screw | 21 ± 2.1 | 35.8 ± 14.9 | 0.1 |
| Screw 1 placed | 2.9 ± 0.7 | 4 ± 1.6 | 0.3 |
| Screw 2 placed | 4.7 ± 1.4 | 3.8 ± 2 | 0.5 |
| Screw 3 placed | 4 ± 0.5 | 4.3 ± 2.9 | 0.9 |
| Screw 4 placed | 3.8 ± 0.3 | 3 ± 0.7 | 0.1 |
| Time/screw | 3.9 ± 1.1 | 3.8 ± 2 | 0.9 |
| Posterior superior iliac spine pin placement | 0.3 ± 0.1 | 0.3 ± 0.1 | 1 |
| Total time | 36.6 ± 4.4 | 55 ± 1.9 | <0.05 |
Note: All values presented as mean ± SD.