Table 2 Secondary Outcomes
Characteristic | Mean [95%CI] | P Value | ||
|---|---|---|---|---|
Peri-Articular Injection | Intra-Articular Injection | Between-Group Difference in Change [95%CI] | ||
Operation time (min) | 70.0 [68.4, 71.6] | 69.8 [67.9, 71.7] | 0.2 [−2.2, 2.6] | 0.614 |
Wound drainage volume day 1 (mL) | 85.7 [66.1, 105.4] | 82.8 [65.1, 100.4] | 2.9 [− 23.1, 29.1] | 0.992 |
Wound drainage volume day 2 (mL) | 95.9 [74.3, 117.5] | 87.6 [68.3, 107.0] | 8.2 [−20.4, 36.9] | 0.731 |
Wound drainage volume in total (mL) | 181.7 [148.5, 214.9] | 170.4 [138.0, 202.8] | 11.2 [−34.6, 57.1] | 0.607 |
Postoperative days required to perform straight leg raise | 1.08 [0.90, 1.25] | 1.45 [1.21, 1.68] | −0.36 [−0.65, −0.08] | 0.026 |
Morphine consumption (mg/kg) | 1.23 [1.15, 1.31] | – | – | |
Length of hospital stay | 5.53 [4.98, 6.07] | – | – | |