抄録
Human knee joints have rather complicated surface gemetries, which may contribute important roles upon the movement and the load bearing of them. So, it is necessary to express the articular surface geometries in mathematical formulation to elucidate the joint movement mechanics. But these geometries are rule-less free formed. Therefore we deduced the equation of curved surface geometries to express mathematically the entire articular surfaces by application of the computer aided designing theory. Further we computed out some differential geometrical valuables and abstructed articular feature patterns and the indices of load bearing capacity on the articular surfaces of contact region for various knee flexion angles.
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