Fig. 3From: The influence of varus and valgus deviation on the contact area of patellofemoral joint in healthy kneesHistogram showing changes of contact area in different facets between group I and group II at different knee flexionLFCA: lateral facet contact area MFCA: medial facet contact area TFCA: total facet contact area Group I :the group of valgus alignment Group II : the group of varus alignmentBack to article page