Mechanical Behavior of Bone Cement under Dynamic Loading

  • Mohammed Elnedhir Belgherras Djillali Liabes University of Sidi Bel-Abbes
  • Boualem Serier Djillali Liabes University of Sidi Bel-Abbes, Algeria
  • Ali Benouis Djillali Liabes University of Sidi Bel-Abbes
  • Lalia Hachemi University of Mascara, Algeria

Abstract

In orthopedic surgery and particularly in total hip arthroplasty, The fixation of the implant is generally made by the surgical cement, constituted essentially by polymer (PMMA), It is necessary to know the strengths applied to the prosthetic articulation during the current activities exercised by the patient in their life, to know the distribution of the constraints in the system (bone - cement - implant).
This study aims to analyze numerically using the finite element method, the effect of activities (dynamic loads) of the patient on the level and distribution of stresses generated in the components of total hip prosthesis. Five activities, the most frequently performed by the patient such as normal walking, the up and down stairs, sitting and up from chair, were selected for this study. For this purpose, a three-dimensional model of the total hip prosthesis has been developed. The results obtained from this model show that the total hip replacement components and especially the bone cement are more highly stressed during the process of climbing stairs. These excessively high loads can lead to damage of the cement and thus the loosening of the prosthesis.

Keywords

femoral implant, bone cement, bone, biomechanical, stresses, dynamic, activity
Published
20-06-2017
How to Cite
BELGHERRAS, Mohammed Elnedhir et al. Mechanical Behavior of Bone Cement under Dynamic Loading. Periodica Polytechnica Mechanical Engineering, [S.l.], v. 61, n. 3, p. 204-212, june 2017. ISSN 1587-379X. Available at: <https://pp.bme.hu/me/article/view/9672>. Date accessed: 25 sep. 2017. doi: https://doi.org/10.3311/PPme.9672.
Section
Articles