Fig. 2

Results of contact stress of tibiofemoral articular cartilage and meniscus displacement under a combined load of 1150 N in compression, 134 N posterior on the femur. Figures a-d are the stress cloud diagrams of the tibiofemoral joint at 0°, 30°, 60°, and 90° knee flexion. The colour changes (from red to deep blue) represent the stress variation (from large to small) on the stress nephogram