Fig 1.
The flowchart of the entire research process: Data collectin, establishment of standard UKA model, biomechanical analysis of different loads.
Table 1.
Elements and nodes of different items.
Table 2.
Material properties of different items of knee.
Fig 2.
750N of vertical load on the femur; 750N of vertical load on the femur, combined with 105N of anterior tibial load; 750N of vertical load on the femur, combined with 7.5Nm of tibial varus load; 750N of vertical load on the femur, combined with 6.9Nm of tibial internal rotation load.
Fig 3.
Validation of stress structure of knee joint: A: Equivalent stress of medial and lateral menisci; B: Equivalent stress of medial and lateral tibial cartilage; C: Equivalent stress of femoral cartilage.
Fig 4.
The equivalent stress distribution contour maps of the anterior cruciate ligament under a vertical load of 750 N on the femur and an anterior load of 105 N on the tibia.
Fig 5.
The stress distribution contour maps of the polyethylene gasket, under a vertical load of 750 N on the femur and an anterior load of 105 N on the tibia.
Fig 6.
The stress distribution contour maps of the lateral femoral cartilage under a vertical load of 750 N on the femur and an anterior load of 105 N on the tibia.