Table 3 Passive range of knee motion and knee biomechanics during gait at baseline and at one year following total knee arthroplasty among patients reporting a poor outcome in knee-related quality of life
Passive range of motion | Knee biomechanics during gait | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Knee flexion | Knee extension | Flexion-extension range | Peak varus angle during stance | Peak flexion moment | Peak extension moment | Peak valgus moment | ||||||||
Degrees | Degrees | Nm/kg | ||||||||||||
ID | Baseline | Postop | Baseline | Postop | Baseline | Postop | Baseline | Postop | Baseline | Postop | Baseline | Postop | Baseline | Postop |
1 | 120 | 110 | −15 | 0 | 49.2 | 51.7 | 1.5 | 2.2 | −0.42 | −0.47 | 0.23 | 0.50 | 0.32 | 0.48 |
2 | 140 | 125 | 5 | 5 | 56.2 | 54.5 | 12.2 | 8.9 | −0.46 | −0.41 | 0.31 | 0.24 | 0.51 | 0.48 |
3 | 115 | 105 | 10 | 0 | 48.5 | 53.8 | 4.7 | 2.2 | −0.51 | −0.54 | 0.22 | 0.23 | 0.40 | 0.40 |
4 | 120 | 100 | 0 | −5 | 50.9 | 55.9 | 7.9 | 7.1 | −0.44 | −0.39 | 1.11 | 0.79 | 0.57 | 0.52 |
5 | 140 | 130 | 5 | 5 | 55.4 | 54.9 | 16.0 | 6.3 | −0.43 | −0.36 | 0.21 | 0.42 | 0.84 | 0.45 |
6 | 90 | 115 | −5 | −5 | 55.0 | 50.0 | 7.4 | 6.4 | −0.37 | −0.33 | 0.17 | 0.21 | 0.26 | 0.35 |
7 | 130 | 105 | 0 | 5 | 50.9 | 39.8 | 6.2 | 7.7 | −0.39 | −0.43 | 0.49 | 0.13 | 0.60 | 0.42 |
8 | 130 | 90 | −5 | −10 | 58.7 | 49.1 | 10.8 | 3.7 | −0.48 | −0.32 | 0.32 | 0.17 | 0.65 | 0.56 |
9 | 135 | 130 | 0 | 5 | 42.1 | 41.5 | 9.9 | 5.8 | −0.16 | −0.15 | 0.44 | 0.30 | 0.68 | 0.47 |