Table 1.
Results of the baseplate navigation accuracy using augmented reality through head-mounted display
| ID | 3D vector | Entry point | Attempts | Side |
|---|---|---|---|---|
| 1 | 1.0° | 3.3 mm | 1 | Left |
| 2 | 3.2° | 5.7 mm | 1 | Left |
| 3 | 7.8° | 2.3 mm | 2 | Left |
| 4 | 3.2° | 4.3 mm | 1 | Right |
| 5 | 3.4° | 4.0 mm | 1 | Right |
| 6 | 4.7° | 0.6 mm | 1 | Left |
| 7 | 4.3° | 2.3 mm | 1 | Left |
| 8 | 4.9° | 5.4 mm | 1 | Left |
| 9 | 4.7° | 1.9 mm | 1 | Left |
| 10 | 3.4° | 4.0 mm | 1 | Right |
| 11 | 1.0° | 6.2 mm | 1 | Left |
| 12 | 3.3° | 1.6 mm | 1 | Right |
|
Mean 95% CI |
3.8° ± 1.7° (95% CI 2.6°; 4.9°) |
3.5 ± 1.7 mm (95% CI 2.4; 4.6) |
1 ± 0.3 |
The values 3D vector and entry point describe the deviation from the planning measured by comparing the preoperatively planned vector with the postoperatively achieved vector using computed tomography. Attempts reflect the number of registration processes to achieve adequate hologram overlay
CI confidence interval, mm millimeter