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Applied Sciences
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Application of Finite Element Method in Arthroplasty Biomechanics
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Application of Finite Element Method in Arthroplasty Biomechanics

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Mechanical Engineering".

Deadline for manuscript submissions: 31 July 2024 | Viewed by 3368

Special Issue Editor

Dr. Vincenzo Filardi

E-Mail Website
Guest Editor
D.A. Research and Internationalization, University of Messina, Via Consolato del Mare 41, 98121 Messina, Italy
Interests: finite element analysis; mechanics of materials; finite element modeling; structural analysis; design engineering; stress analysis; mechanical engineering design; mechanical engineering; fracture; FE analysis; materials

Special Issue Information

Dear Colleagues,

FE method has reached significant milestones in scientific research regarding biomedical and biomechanics applications. Many papers have been published regarding complex human joints and bones implanted with prosthesis screws, or simply analyzed from a kinetic or kinematic point of view, showing significant correspondence with reality. FE models are becoming increasingly complex, including interfaces, contacts, material laws, time-variable forces and constraints, and the typology of numerical analyses. In order to ensure reasonable results, all these variables must be well considered. This implies a multidisciplinary approach using other traditional tools to develop numerical inputs or calibrate the obtained results. Many relevant achievements have been obtained in designing implants, prosthesis, screws etc. Among other advantages, FE method can furnish a complete landscape, which no other kind of investigation can provide, of all the main physical quantities. Moreover, numerical techniques manage in real time the work in progress, without involving human patients or very complicated testing machines. This Special Issue aims to evidence, through multidisciplinary approaches, how investigations carried out on the Application of Finite Element Method in Arthroplasty Biomechanics can produce relevant and needed results in this field.

Dr. Vincenzo Filardi
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • implanted femur
  • implanted humerus
  • knee replacement
  • bony dislocations
  • FE modelling of human joints

Published Papers (2 papers)

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Research

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14 pages, 5074 KiB  
Article
Quadriceps Muscle and Medial Retinaculum Combinate Effects on Patellar Instability during Knee Flexion
by Angelo Alito, Vincenzo Filardi and Demetrio Milardi
Appl. Sci. 2023, 13(9), 5420; https://doi.org/10.3390/app13095420 - 26 Apr 2023
Cited by 1 | Viewed by 2546
Abstract
Background: Patellar instability can cause pain and disability. A finite element model of a healthy human knee was performed to analyze the role of quadriceps and medial retinaculum imbalance in patellar instability. Methods: The model was created by matching magnetic resonance and computed [...] Read more.
Background: Patellar instability can cause pain and disability. A finite element model of a healthy human knee was performed to analyze the role of quadriceps and medial retinaculum imbalance in patellar instability. Methods: The model was created by matching magnetic resonance and computed tomography images of a normal adult patient’s knee. Muscle force intensities were calculated by static optimization, considering the lower limb muscles, knee movement and the ground reaction during walking. Patellar instability was experimentally generated by progressively uncoupling muscular forces, (90 N versus 110 N), while at the same time, the load derived from the quadriceps was gradually reduced by 20%. Results: This loss in force symmetry of 10 N on the retinaculum may produce a displacement of approximately 7 mm, with an increase in patellar contact forces of approximately 44%. When the quadriceps force is reduced by 10% and the unbalanced medial retinaculum acts together, the displacements are in the order of 14 mm, and the patellar contact forces increase by 84%. Conclusion: A reduced quadriceps force alone is not able to cause significant patellar instability, while an imbalance of forces at the level of the retinaculum could lead to patellar instability, especially when the two effects are combined. A better understanding of joint relationships and muscle synergies can help to improve clinical approaches to patella instability Full article
(This article belongs to the Special Issue Application of Finite Element Method in Arthroplasty Biomechanics)
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Review

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28 pages, 1047 KiB  
Review
Finite Element Models to Predict the Risk of Aseptic Loosening in Cementless Femoral Stems: A Literature Review
by Xiaoshu Sun, Cristina Curreli and Marco Viceconti
Appl. Sci. 2024, 14(8), 3200; https://doi.org/10.3390/app14083200 - 10 Apr 2024
Viewed by 271
Abstract
Aseptic loosening is the most common failure mode for total hip arthroplasty, and the design of the implant plays a significant role in influencing the longevity and stability of the implant. Finite Element (FE) models have been demonstrated to be powerful numerical tools [...] Read more.
Aseptic loosening is the most common failure mode for total hip arthroplasty, and the design of the implant plays a significant role in influencing the longevity and stability of the implant. Finite Element (FE) models have been demonstrated to be powerful numerical tools that allow for generating information supporting the device’s safety and/or efficacy during pre-clinical assessment. Different authors have proposed FE studies aiming to simulate the long-term stability of the femoral stem; however, multiple improvements are still necessary for translating computational methodologies into clinical practice. This paper provides a comprehensive overview of the modelling procedures for predicting aseptic loosening risk, focusing on cementless femoral stems. The main modelling assumptions, including bone and implant geometry, materials, boundary conditions, and bone–implant interface contact, were summarised and presented. The limitations of various modelling assumptions and their impact on the simulation results were also discussed. The analysis suggests that more rigorous clinical validation for osseointegration models and failure criteria used to determine loosening of the implant should be clearly defined, and efforts should be made to identify the appropriate limit of tolerable conditions. Full article
(This article belongs to the Special Issue Application of Finite Element Method in Arthroplasty Biomechanics)
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