Table 3.
comparison of intraoperative and operative related indices between the two groups.
| Index | Navigation group | Tinavi group | t/Z/χ2 | P |
|---|---|---|---|---|
| Operation time (min) | 201.00 ± 42.67 | 232.63 ± 60.33 | 2.056 | 0.045 |
| Single-nail implantation time (min) | 3.69 ± 0.66 | 2.51 ± 1.11 | 4.693 | 0.000 |
| Screw density | 88.10 ± 7.99 | 87.71 ± 8.14 | 0.168 | 0.867 |
| Distance from screw to anterior cortex (mm) | 5.77 ± 1.82 | 9.69 ± 1.05 | 8.860 | 0.000 |
| Bleeding volume (ml) | 260.19 ± 60.49 | 200.84 ± 43.66 | 4.034 | 0.000 |
| Fluoroscopic dose (mGy) | 366.12 ± 79.86 | 463.15 ± 75.46 | 4.379 | 0.000 |
| Notch length (cm) | 7.26 ± 0.96 | 4.99 ± 1.11 | 7.540 | 0.000 |
| Length of stay (days) | 5.23 ± 2.31 | 5.33 ± 2.17 | 5.619 | 0.876 |
Definition of single-nail implantation time: After full exposure, the needle entry point was determined from the beginning to the end of nail placement.