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Computer Simulation Prediction of the Operational Capability and Reliability of a Condylar Prosthesis

  • APPLIED PROBLEMS OF STRENGTH AND PLASTICITY
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Russian Metallurgy (Metally) Aims and scope

Abstract—A finite element simulation of the state of stress in the femur–condylar prosthesis biotechnical system is performed, and its mechanical behavior is analyzed. The metallic components of the endoprosthesis (implant) are made of a VT6 titanium alloy, and the plateau of the tibial component is made of ultrahigh-molecular-weight polyethylene. The stresses in the bone structures and the most severely loaded components of the endoprosthesis are calculated at a functional load of 3300 N. A high degree of similarity of the biomechanical behavior of the biotechnical system (with the endoprosthesis) to the behavior of a healthy femur has been established. The stresses and strains of all components of the biotechnical system are shown not to exceed their critical values. The calculation results made it possible to predict the operational capability and reliability of the endoprosthesis components under static and cyclic loads, the wear resistance of the mobility unit, and the reliability of the cement mantle.

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ACKNOWLEDGMENTS

The experiments were carried out using the equipment of the collective use resource center AKMiT of the Moscow Aviation Institute.

Funding

This work was supported by the Ministry of Education and Science of the Russian Federation within the framework of state support for the development of cooperation between Russian educational institutions of higher education and organizations of the real sector of the economy in order to implement complex projects for the creation of high-tech industries approved by Decree of the Government of the Russian Federation no. 218 of April 9, 2010 (agreement no. 075-11-2022–033 of April 8, 2022 “Creation of high-tech production of endoprostheses for revision arthroplasty using a titanium-based alloy with enhanced biocompatibility, wear resistance, and bacteriostaticity of oligodynamic action”).

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Authors and Affiliations

  1. Moscow Aviation Institute (National Research University), 125993, Moscow, Russia

    A. M. Mamonov, E. V. Preobrazhenskii, A. V. Neiman, O. A. Polyakov & E. O. Agarkova

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  1. A. M. Mamonov
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  2. E. V. Preobrazhenskii
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  3. A. V. Neiman
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  4. O. A. Polyakov
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  5. E. O. Agarkova
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Corresponding author

Correspondence to A. V. Neiman.

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The authors of this work declare that they have no conflicts of interest.

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Translated by K. Shakhlevich

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Mamonov, A.M., Preobrazhenskii, E.V., Neiman, A.V. et al. Computer Simulation Prediction of the Operational Capability and Reliability of a Condylar Prosthesis. Russ. Metall. 2023, 1522–1527 (2023). https://doi.org/10.1134/S0036029523100208

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  • DOI: https://doi.org/10.1134/S0036029523100208

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