Figure 3.

The use of the ‘non-manifold algorithm’ to create common contact areas between adjacent tissue, such as the distal femur and femoral cartilage. (a) The inner geometry of the cartilage was overestimated to protrude into the femur and eliminate any gap at the femur-cartliage boundary. (b) The non-manifold assembly technique superimposed the accurately identified femur with the overestimated cartilage image to remove overlaps between the femur and cartilage, creating a common boundary between the adjacent femur and cartilage surfaces.