ИСТИНА

A computational study the stress-strain state of bone tissue dependence on its density was performed by using the methods of finite and boundary elements. The calculation of the implant and the surrounding bone tissues stress-strain state was carried out for plane strain state and consisted of two stages: 1) calculation of the entire implant structure with smoothed screw join between implant and the surrounding bone tissue; 2) study of the of stresses distribution in the screw connection in the zone of adhesion of the implant to the bone tissue. The calculations were performed under the assumption that the bone tissue is an isotropic and homogeneous elastic material.