Group | Postoperative hemoglobin (g/L) | Drainage volume (mL) | Number of allogeneic blood transfusion | Maximum postoperative body temperature | Upper patellar diameter difference before and after surgery (cm) | Joint motion (degree) | ||
---|---|---|---|---|---|---|---|---|
First day | Third day | Seventh day | ||||||
Routine drainage (n = 18) | 81.33 ± 9.86 | 666.1 ± 155.0 | 8 | 37.26 ± 0.55 | 36.89 ± 0.66 | 36.79 ± 0.53 | 2.56 ± 1.20 | 110.56 ± 11.36 |
Blood transfusion (n = 25) | 91.96 ± 9.57** | 799.2 ± 196.7* | 4* | 37.70 ± 0.53** | 37. 31 ± 0.44* | 37.09 ± 0.37* | 2.68 ± 1.10 | 108.00 ± 11.27 |
Delayed drainage (n = 18) | 91.50 ± 7.92** | 381.7 ± 129.2**△△ | 2* | 37.27 ± 0.41△ | 36.67 ± 0.47△△ | 36.67 ± 0.48△△ | 2.33 ± 0.89 | 107.50 ± 10.77 |
Statistics | F = 7.616 | F = 24.167 | χ2 = 5.087 | F = 4.953 | F = 6.834 | F = 7.616 | F = 0.406 | F = 0.365 |
P value | 0.001 | 0.000 | 0.079 | 0.011 | 0.002 | 0.001 | 0.669 | 0.696 |