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Table 2
Summary of surgical and postoperative factors.
| Overall | Low OC | High OC | p | |
|---|---|---|---|---|
| Duration of surgery (minutes), median (IQR) | 89 (69–110) | 89 (69–108) | 89 (67.75–117) | 0.261 |
| Anaesthesia type, n (%): | ||||
| General | 816 (45.6%) | 529 (39.4%) | 287 (64.6%) | <0.001 |
| Spinal | 972 (54.4%) | 815 (60.6%) | 157 (35.4%) | |
| Implant fixation, n (%) | ||||
| Uncemented | 1370 (82%) | 1013 (81.4%) | 357 (83.8%) | 0.054 |
| Cemented | 16 (1.0%) | 12 (1%) | 4 (0.9%) | |
| Hybrid (cemented femur) | 283 (16.9%) | 220 (17.7%) | 63 (14.8%) | |
| Reverse hybrid (cemented acetabulum) | 2 (0.1%) | 0 (0) | 2 (0.1%) | |
| Technique, n (%) | ||||
| Robotic THA | 328 (17.6%) | 272 (19.5%) | 56 (11.9%) | <0.001 |
| Manual THA | 1539 (82.4%) | 1126 (80.5%) | 413 (88.1%) | |
| Length of stay (hours), median (IQR) | 58 (48–98) | 56 (36–81) | 85 (58–129) | <0.001 |
| Length of stay (days), median (IQR) | 2 (2–3.5) | 2 (1–3) | 3 (2–5) | <0.001 |
| Postoperative PACU admission, n (%) | 139 (7.4%) | 75 (5.4%) | 64 (13.6%) | <0.001 |
| 30-Day readmission, n (%) | 113 (6%) | 78 (5.6%) | 35 (7.5%) | 0.146 |
IQR, inter-quartile range; PACU, Post Anaesthesia Care Unit, percentages may not total 100% due to rounding. Bold indicates statistical significance (p < 0.05).
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