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      Finite Element Analysis of Acetabulum Prosthesis' Lining Damage Zone with Different Implanting Angle

      research-article
      1 , , 2 , 1
      Computational and Mathematical Methods in Medicine
      Hindawi

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          Abstract

          Objective

          Research the acetabular component's construction method of a three-dimensional finite element model in THA with different angles and study the influence of polyethylene liner wearing with finite element analysis.

          Methods

          Build a model in the 3D modeling software system HyperMesh according to the artificial hip joint prosthesis' entities and data. Using a finite element analysis system, ABAQUS 6.11 reconstitute acetabular prosthesis after hip replacement joints under different implanting position angles. Simulation and load the joint load when sheet foot touchdown state. Calculate the plastic volume strain and fatigue fracture.

          Results

          The two groups of combinations of abduction angle 50° vs. anteversion angle 10° and abduction angle 55° vs. anteversion angle 15° have been found to have relatively smaller interface plastic strain and fatigue fracture volume value (2.241 × 10 −7 m 3, 2.443 × 10 −7 m 3), respectively.

          Conclusion

          The groups of combinations of abduction angle 50° vs. anteversion angle 10° have been found to have relatively smallest interface plastic strain and fatigue fracture volume value in the total hip arthroplasty.

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          Most cited references23

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          Revision joint replacement, wear particles, and macrophage polarization.

          Currently, younger, more active patients are being offered total joint replacement (TJR) for end-stage arthritic disorders. Despite improved durability of TJRs, particle-associated wear of the bearing surfaces continues to be associated with particulate debris, which can activate monocyte/macrophages. Activated macrophages then produce pro-inflammatory factors and cytokines that induce an inflammatory reaction that activates osteoclasts leading to bone breakdown and aseptic loosening. We hypothesized that activated macrophages in tissues harvested from revised joint replacements predominantly express an M1 pro-inflammatory phenotype due to wear-particle-associated cell activation, rather than an M2 anti-inflammatory phenotype. We further questioned whether it is possible to convert uncommitted monocyte/macrophages to an M2 phenotype by the addition of interleukin-4 (IL-4), or whether it is necessary to first pass through an M1 intermediate stage. Retrieved periprosthetic tissues demonstrated increased M1/M2 macrophage ratios compared to non-operated osteoarthritic synovial tissues, using immunohistochemical staining and Western blotting. Uncommitted monocyte/macrophages with/without polymethyl-methacrylate particles were transformed to an M2 phenotype by IL-4 more efficiently when the cells were first passed through an M1 phenotype by exposure to endotoxin. Wear particles induce a pro-inflammatory microenvironment that facilitates osteolysis; these events may potentially be modulated favorably by exposure to IL-4. Copyright © 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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            Clinical Outcomes and Bearing-Specific Complications Following Fourth-Generation Alumina Ceramic-on-Ceramic Total Hip Arthroplasty: A Single-Surgeon Series of 749 Hips at a Minimum of 5-Year Follow-Up

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              Results of 200 consecutive ceramic on ceramic cementless hip arthroplasties in patients up to 50 years of age. A 5 to 24 years follow-up study.

              Ceramic-on-ceramic (CoC) bearings due to their mechanical properties can be used in primary total hip arthroplasty (THA) especially in young patients requiring a long-lasting implant. The goal of this study is to analyze the results of a series of 200 consecutive CoC THAs in patients aged 50 years or less at the time of surgery.
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                Author and article information

                Contributors
                Journal
                Comput Math Methods Med
                Comput Math Methods Med
                cmmm
                Computational and Mathematical Methods in Medicine
                Hindawi
                1748-670X
                1748-6718
                2023
                2 June 2023
                : 2023
                : 9350474
                Affiliations
                1Liaocheng People's Hospital, China
                2Liaocheng Traditional Chinese Medicine Hospital, China
                Author notes

                Academic Editor: Xiang Wu

                Author information
                https://orcid.org/0009-0009-0660-6584
                Article
                10.1155/2023/9350474
                10256448
                7f48457f-a624-4c22-a8ea-8875f08fa13a
                Copyright © 2023 Yiqun Bian et al.

                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.

                History
                : 21 October 2022
                : 13 March 2023
                : 20 March 2023
                Funding
                Funded by: Health Science and Technology Development Program of Shandong Province
                Award ID: 202004070089
                Categories
                Research Article

                Applied mathematics
                Applied mathematics

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