Table 1.
Comparison of AR navigation system, conventional navigation system and metal 3D printing
| AR navigation system | Conventional navigation system | Metal (3D printing) | |
|---|---|---|---|
| Preoperative Planning time (average) (mins) | 4 | 30.5 | 75.5 |
| Manufacturing time (business days) | N/A | N/A | 7 |
| Delivery time (business days) | N/A | N/A | 12 |
| Material cost (USD) per kilogram | N/A | N/A | 150 |
| Intraoperative time (mins) | 8.5 | 31.5 | 10.5 |
| Average angle differences (degrees) | 14.7 | 6.41 | 2.40 |
N/A not applicable