Continuous Outcome | POD1-Group | POD2-Group | p-Value | ||||
---|---|---|---|---|---|---|---|
Median | Mean | 95% CI | Median | Mean | 95% CI | ||
Length of stay (in days)^{*} | 3 | 3.2 | (3.1, 3.4) | 4 | 4.0 | (3.7, 4.4) | <0.001 |
Pain scores at post-op day 2 (0-10, 10 worse)^{†} | 7 | 6.4 | (5.6, 7.2) | 7 | 6.8 | (6.0, 7.6) | 0.445 |
Continuous passive motion (in degrees) at post-op day 2^{†} | 55 | 49.6 | (40.4, 58.8) | 70 | 64.9 | (55.3, 74.6) | 0.031 |
Distance walked (in feet) on post-op day 2^{†} | 10 | 37.9 | (24.3, 51.5) | 3 | 9.3 | (2.5, 16.1) | < 0.001 |
Passive flexion (in degrees) at POD1^{†} | 68 | 66.0 | (61.6, 70.4) | 80 | 73.4 | (67.3, 79.5) | 0.045 |
Passive flexion (in degrees) at discharge^{†} | 80 | 75.9 | (71.3, 80.5) | 88 | 81.9 | (77.0, 86.9) | 0.078 |
Change in passive flexion (degrees)^{†}^{, ‡} | 11.5 | 11.1 | (6.1, 16.1) | 6 | 9.2 | (1.3, 17.0) | 0.665 |
Passive extension (degrees lacking full extension) at POD1^{†} | 10 | 9.5 | (7.3, 11.7) | 5 | 5.5 | (3.7, 7.4) | 0.013 |
Passive extension (degrees lacking full extension) at discharge^{†} | 5 | 7.1 | (4.7, 9.4) | 3.5 | 3.9 | (2.2, 5.5) | 0.047 |
Change in passive extension (in degrees)^{†}^{, ‡} | 2 | 2.7 | (1.0, 4.3) | 0 | 1.5 | (-0.6, 3.5) | 0.356 |
Categorical Outcome | N | % | 95% CI | N | % | 95% CI | p-value |
Independent or minimally assisted walking at discharge^{§} | 42 | 76.4% | (65.1, 87.6) | 24 | 72.7% | (57.5, 87.9) | 0.703 |
Discharged to rehab^{§} | 32 | 58.2% | (45.2, 71.2) | 21 | 61.8% | (45.4, 78.1) | 0.738 |