Table 5.
Perioperative variables of each study group.
| Variables | RAG | FHG | P-value |
|---|---|---|---|
| ORT (M ± SD) (min) | 289 ± 87 | 266 ± 92 | 0.620 |
| BL (M ± SD) (ml) | 257 ± 181 | 245 ± 140 | 0.878 |
| RTC (M ± SD) (s) | 7.29 ± 1.80 | 9.00 ± 3.83 | 0.291 |
| RTS (M ± SD) (s) | 0.56 ± 0.20 | 1.04 ± 0.62 | 0.000 |
| LOS (M ± SD) (days) | 13.1 ± 2.8 | 12.8 ± 3.2 | 0.811 |
BL = blood loss; FHG = free-hand technique group (conventional group); LOS = length of stay; M = mean; ORT = operation time; RAG = “Orthbot”-assisted group; RTC = radiation time per case; RTS = radiation time per screw; SD = standard deviation.