Table 2 Postoperative outcome parameters compared among cryotherapy groups
Characteristics | Gel cold pack (n = 36) | Cryo-cuff (n = 36) | MCCD (n = 36) | P-value |
|---|---|---|---|---|
Morphine use (mg) | ||||
 24 h | 3.0 ± 3.7 | 2.0 ± 0.5 | 1.6 ± 1.5 | 0.110 |
 48 h | 2.0 ± 2.7 | 1.6 ± 1.8 | 1.5 ± 1.9 | 0.579 |
 2 h | 0.9 ± 1.3 | 1.0 ± 2.4 | 0.5 ± 1.0 | 0.607 |
The maximum knee flexion angle (degrees) | ||||
 72 h | 82.7 ± 15.0 | 77.0 ± 21.2 | 87.2 ± 17.5 | 0.182 |
 2 weeks | 96.1 ± 11.9 | 96.3 ± 12.5 | 101.6 ± 11.2 | 0.106 |
Extension lag (degrees) | ||||
 72 h | 3.3 ± 3.2 | 3.1 ± 4.0 | 3.2 ± 3.2 | 0.927 |
 2 weeks | 3.5 ± 2.9 | 4.6 ± 5.0 | 2.5 ± 2.5 | 0.066 |
Length of hospital stay (days) | 3.9 ± 1.1 | 4.0 ± 0.8 | 3.8 ± 0.9 | 0.783 |
Postoperative knee swelling (cm) | ||||
 72 h | 3.0 ± 2.0 | 1.9 ± 1.4 | 3.1 ± 1.6 | 0.007 |
 2 weeks | 1.6 ± 1.9 | 0.9 ± 1.8 | 2.0 ± 1.9 | 0.063 |