Table 1 Summary statistics
From: Improved knee flexion following high-flexion total knee arthroplasty
Pre-Op | 2 Month Post-Op | 2 Month ∆ | 6 Month Post-Op | 6 Month ∆ | 12 Month Post-Op | 12 Month ∆ | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
mean | std dev | mean | std dev | mean | std dev | mean | std dev | mean | std dev | mean | std dev | mean | std dev | |
Gender Knee | ||||||||||||||
N | 39.0 | 39.0 | 39.0 | 35.0 | 35.0 | 39.0 | 39.0 | |||||||
extension | 10.8 | 4.0 | 4.0 | 3.4 | (6.8) | 4.6 | 1.7 | 2.1 | (9.0) | 4.0 | 0.7 | 1.4 | (10.1) | 3.9 |
flexion | 113.5 | 8.7 | 117.1 | 9.3 | 3.5 | 11.0 | 120.9 | 9.7 | 7.3 | 11.1 | 124.1 | 9.5 | 10.5 | 10.3 |
ROM | 102.7 | 9.5 | 113.1 | 11.0 | 10.3 | 12.7 | 119.2 | 10.5 | 16.3 | 11.9 | 123.4 | 9.8 | 20.7 | 11.0 |
Control Knee | ||||||||||||||
N | 39.0 | 39.0 | 39.0 | 30.0 | 30.0 | 39.0 | 39.0 | |||||||
extension | 9.5 | 4.6 | 4.6 | 3.9 | (4.9) | 5.4 | 2.6 | 3.5 | (7.0) | 5.7 | 1.3 | 2.6 | (8.2) | 4.8 |
flexion | 117.0 | 9.8 | 113.8 | 8.1 | (3.2) | 11.3 | 117.6 | 8.4 | (0.5) | 10.6 | 119.6 | 8.4 | 2.6 | 11.2 |
ROM | 107.5 | 11.5 | 109.3 | 10.6 | 1.7 | 13.4 | 115.0 | 10.8 | 6.5 | 13.8 | 118.3 | 9.7 | 10.8 | 13.2 |
Difference (G-C) | p-value | p-value | p-value | p-value | p-value | p-value | p-value | |||||||
extension | 1.3 | 0.18779 | (0.5) | 0.51676 | (1.8) | 0.10828 | (0.9) | 0.25079 | (2.0) | 0.11190 | (0.6) | 0.18911 | (1.9) | 0.05408 |
flexion | (3.5) | 0.09932 | 3.2 | 0.10605 | 6.7 | 0.00949 | 3.3 | 0.14166 | 7.8 | 0.00530 | 4.5 | 0.03096 | 7.9 | 0.001649 |
ROM | (4.8) | 0.04836 | 3.8 | 0.12750 | 8.6 | 0.00485 | 4.2 | 0.11872 | 9.8 | 0.00353 | 5.1 | 0.02317 | 9.9 | 0.000595 |