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Operation related factors
| Group | NK | TK | P |
|---|---|---|---|
| Operative time (min, mean ± SD) | 45.1 ± 3.8 | 60.0 ± 7.3 | < 0.01 |
| Blood loss (ml, mean ± SD) | 55.6 ± 7.7 | 84.0 ± 7.6 | < 0.01 |
| Fluoroscopy time (s, mean ± SD) | 8.5 ± 1.3 | 14.0 ± 2.8 | < 0.01 |
| Hospitalization days(d, mean ± SD) | 5.2 ± 1.9 | 6.3 ± 26 | 0.0469 |
