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The paper presents the generalized and parametrized 3D geometric modelling of the lower limb bone system. The research subscribes to ampler interests within the specialty literature, objectified through analytical, geometrical, numerical or experimental models regarding the human gait. The study of the previously mentioned models presents high interest for the further development of treatment strategies, implants or prosthesis of the specific human body element. After the thorough study of the anatomy, kinematics and biomechanics, a parametrized 3D modelling of the lower limb assembly has been developed. The resulted product assures generating the 3D model of the foot within all gait phases, through changing of the parameter values, and further, it can be associated to the existing variable loading states. By using the Skeleton system method within the relevant joint areas, it is provided the facile possibility of simulations and analyses of both healthy subjects, along with subjects affected by diverse pathological conditions, such as axial deviations of the bones. [ABSTRACT FROM AUTHOR]