Version 1
: Received: 12 August 2020 / Approved: 14 August 2020 / Online: 14 August 2020 (11:38:00 CEST)
How to cite:
Czerniec, M.; Zubrzycki, J. Study of Contact Pressures in Total Hip Replacement. Preprints2020, 2020080324. https://doi.org/10.20944/preprints202008.0324.v1
Czerniec, M.; Zubrzycki, J. Study of Contact Pressures in Total Hip Replacement. Preprints 2020, 2020080324. https://doi.org/10.20944/preprints202008.0324.v1
Czerniec, M.; Zubrzycki, J. Study of Contact Pressures in Total Hip Replacement. Preprints2020, 2020080324. https://doi.org/10.20944/preprints202008.0324.v1
APA Style
Czerniec, M., & Zubrzycki, J. (2020). Study of Contact Pressures in Total Hip Replacement. Preprints. https://doi.org/10.20944/preprints202008.0324.v1
Chicago/Turabian Style
Czerniec, M. and Jarosław Zubrzycki. 2020 "Study of Contact Pressures in Total Hip Replacement" Preprints. https://doi.org/10.20944/preprints202008.0324.v1
Abstract
Total hip arthroplasty is a complex procedure. The achievements of implantology enabled the development of a faithful representation of hip joint physiology as well as the production of materials that can successfully replace damaged natural tissues. A very important issue is the correct selection of the geometry of the endoprosthesis adequate to the load of the joint. Materials used for endoprosthesis are a metal head and a polymer cup (e.g. PE-UHMW). The main interactions in the endoprosthesis are friction and surface pressure, which must be limited, exceeding them causes the destruction of the biomechanical system - plastic deformation of the polymer and the formation of too large and unacceptable radial clearances. Based on the author's developed calculation method of hip joint endoprosthesis contact parameters, the impact on maximum contact pressure and the angle of contact of the joint load was estimated depending on the diameter of the endoprosthesis and radial clearance. The correctness of changing the values of maximum contact pressure from the mentioned parameters was determined. Correspondingly: an increase in joint load causes a linear increase in the maximum contact pressure; increasing the diameter of the endoprosthesis head - their non-linear decrease, and increasing radial clearance - their increase
Keywords
hip endoprosthesis; calculation method; contact mechanics; contact pressure; diameter of the endoprosthesis head; radial clearance
Subject
Engineering, Mechanical Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
