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| Perioperative parameters | MIS | Open | P |
|---|---|---|---|
| Operation time (min) | 138 (SD 38) | 189 (SD 43) | 0.15 |
| Fluoroscopic dose (mSv) | 34 (SD 26) | 4 (SD 2) | 0.0007* |
| Hemoglobin drop (g/L) | 12 (SD 11) | 21 (SD 12) | 0.05* |
| Length of stay (days) | 6 | 9.5 | 0.16 |
*, statistical significance P≤0.05. MIS, minimally invasive surgery.
