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Surgical indices in the occurrence and non-occurrence groups
| Item | Non-occurrence group (n=152) | Occurrence group (n=48) | t/χ2 | P |
|---|---|---|---|---|
| Blood loss | 78.12 ± 10.13 | 81.26 ± 10.47 | 1.826 | 0.072 |
| Operation time (min) | 103.43 ± 20.35 | 107.68 ± 20.19 | 1.270 | 0.208 |
| Revision surgery for blade prominence [n (%)] | 0 (0.00%) | 4 (8.33%) | 9.023 | 0.003 |
| Hospital stays (days) | 9.43 ± 3.56 | 12.45 ± 6.67 | 2.998 | 0.004 |
