Registration Number
0226U000831,
(0124U000383)
, R & D reports
Title
Biomechanical evaluation of the influence of acetabular components configuration on the hip joint endoprosthesis fixation stability
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Розробка скінченно-елементних моделей для дослідження напружено-деформованого стану елементів кульшового суглоба, що має дефекти вертлюжної западини, з ендопротезом при експлуатаційних навантаженнях.
Head
Mokrii Tetiana F., Кандидат технічних наук
Registration Date
16-01-2026
Organization
Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine
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Biomechanical evaluation of fixation stability of different designs of hip joint endoprosthesis acetabular components by mathematical simulation of their behaviour in the “cup-hip bone” system to improve the results of hip arthroplasty.
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The object of the research is hip joint endoprosthetics. The purpose of the work at the second stage of the research is to develop finite element models for studying the stress-strain state (SSS) of hip joint elements with an endoprosthesis under operational loads accounting acetabular defects. Research methods are the finite element method and linear algebra methods. At the second stage of the research, the finite element model for studying the SSS of hip joint elements without acetabular defects under operational loads has been improved. Finite element models has been developed to evaluate the SSS of hip joint elements at various post-operative stages of total hip endoprosthetics surgery using a cementless acetabular component pressed into a healthy (without defects) acetabulum. Finite element models has been developed to evaluate the SSS of hip joint elements at standing on two legs at the early post-operative stage in the cases when an acetabular component was installed by the "Press-fit" method into an acetabulum with various defects associated with the destruction of its cancellous tissue. The investigations of hip joint elements without acetabular defects SSS has been carried out both before and after total hip endoprosthetics. The strength of hip joint elements with acetabular defects under operational loads at the early post-operative stage has been evaluated. The work results obtained at second stage will be used in the future to develop recommendations for selecting of acetabular component designs which ensuring the stable performance of the hip endoprosthesis accounting the acetabulum condition. Applied scientific research work on the topic III-125-24 is the development of joint research on biomechanical systems carried out within the framework of agreements on scientific and technical cooperation № 321-7 dated 01.02.2014 and № 362-7 dated 10.12.2021 with the Dnipro State Medical University.
Product Description
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Dmytro V. Horobets
Maryna B. Sobolevska
Tatiana Mokriy
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2026-01-16
