Abstract
The paper reports the results of the computer-aided analysis of the durability of porous cylindrical titanium nickelide prostheses intended for replace the intervertebral disk in the cervical spine segment and vertebral bone tissue of different density. Endoprostheses of different sizes were made of titanium nickelide obtained by self-propagating high-temperature synthesis. Experimental uniaxial compression load curves were obtained to assess the mechanical properties of the prostheses. The assessment of segment durability when the segment is tilted forward was carried out on the basis of stress state calculations of the segment with prostheses, as well as expressions approximating experimental data on porous samples cyclic loading made of titanium nickelide and bone tissue. The results of the study show the possibility of long-term operation of the implants in question and the absence of fatigue destruction of vertebral bone tissue throughout a person’s life.
Published Version
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