Table 2.
Total contact forces (CF) on tibial plateau calculated from FE analysis method and kinematic method
| Ry1 (N) | Ry3 (N) | Total CF (N) | Ratio | Medial CF (N) | Lateral CF (N) | |
|---|---|---|---|---|---|---|
| Valgus stance | 230.3 | 204.04 | 221.08 | 0.92 | 187.16 | 33.92 |
| Valgus peak 1 | 496.89 ± 35.16 | 470.60 ± 34.98 | 484.06 ± 35.20 | 0.97 ± 0.01 | 78.73 ± 10.00 | 405.33 ± 25.87 |
| Valgus peak 2 | 533.63 ± 4.91 | 505.66 ± 2.90 | 521.20 ± 7.34 | 0.97 ± 0.02 | 500.60 ± 4.34 | 20.60 ± 3.02 |
| Control stance | 135.82 | 123.73 | 121.81 | 0.98 | 26.68 | 95.13 |
| Control peak 1 | 264.50 ± 5.85 | 241.22 ± 4.28 | 243.54 ± 10.13 | 0.99 ± 0.02 | 68.83 ± 2.69 | 174.71 ± 7.44 |
| Control peak 2 | 282.47 ± 11.69 | 254.63 ± 9.25 | 263.91 ± 12.12 | 0.97 ± 0.01 | 140.87 ± 6.40 | 123.04 ± 5.76 |
Ry1 is the vertical ground reaction force (GRF) and Ry3 is the knee joint force calculated by the traditional kinematic measurement methods. The total CF represents the contact forces calculated by the finite element analysis method. The ratios were obtained from ‘Ry3/Total CF’. The total CF is consisted of the CF on medial tibial plateau and the CF on lateral tibial plateau