[Morphofunctional basis of joint typology]

Everincreasing needs of practice (medical, sporting, etc.) demand to reconsider the existing articular classification according to their similarity to geometric "rotation bodies". Every joint can be regarded as highly-, moderately- and stiffly-mobile, according to the degree of relative shift of the connected links. Swing correlation of the opposite movements makes it possible to demonstrate the existance of ordinary joints, as well as joints with a preferable movement which exceeds considerably average normal swing. Kinematic expression of the articular type is a maximum swing of passive movings in it. Morphologic base of the type is the degree of curvature and congruence of the articular surfaces, location and form of the movement restrictors in the bone, size and differentiation of ligaments, "passive insufficiency" level of muscles-antagonists. Percentage correlation of every articular type depends on age.