TABLE 2.
Comparison of results in the two groups
| Results | TiRobot group (50 cases) | Conventional group (83 cases) | P |
|---|---|---|---|
| Operation duration (min, mean ± SD) | 83.3 ± 31.2 | 44.1 ± 14.8 | 0.000 |
| Fluoroscopy frequency (times, mean ± SD) | 40.1 ± 28.5 | 38.6 ± 21.0 | 0.873 |
| Intraoperative bleeding (mL, mean ± SD) | 11.3 ± 7.3 | 51.6 ± 40.4 | 0.000 |
| Hospital stay for patients without comorbidities (days, mean ± SD) | 8.6 ± 2.8 | 11.1 ± 3.4 | 0.000 |
| Medical expenses for patients without comorbidities (yuan, mean ± SD) | 28407.1 ± 7498.0 | 22672.3 ± 4130.3 | 0.000 |
| Screw parallelism (AP, degree) | 1.32 ± 1.85 | 2.54 ± 2.99 | 0.005 |
| Screw parallelism (lateral, degree) | 1.42 ± 2.25 | 3.09 ± 3.63 | 0.001 |
| Distance between screws (mm) | 58.44 ± 10.52 | 39.69 ± 12.17 | 0.000 |
| Follow‐up time (months, mean ± SD) | 33.7 ± 6.0 | 41.8 ± 11.4 | 0.000 |
| Nonunion (cases) | 0 | 6 | 0.083 |
| Necrosis of femoral head (cases) | 3 | 20 | 0.008 |
| Harris score (points, mean ± SD) | 93.2 ± 10.3 | 88.4 ± 11.9 | 0.176 |
AP, anteroposterior; SD, standard deviation.