Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Analytical, Numerical and Physical Models Vol. 15, No. 57 (2021)

Preliminary results on the effects of orthopedic implant stiffness fixed to the cut end of the femur on the stress at the stump-prosthetic interface

Author and affiliation details
  • Ismail Boudjemaa Corresponding author Department of Mechanical Engineering, Laboratory Mechanics Physics of Materials (LMPM), University of SidiBel Abbes, BP 89, cite Ben M’hidi, SidiBel Abbes, 22000, Algeria ismailboubou000@gmail.com
  • A. Sahli Department of Mechanical Engineering, Laboratory Mechanics Physics of Materials (LMPM), University of SidiBel Abbes, BP 89, cite Ben M’hidi, SidiBel Abbes, 22000, Algeria
  • A. Benkhettou Department of Mechanical Engineering, Laboratory Mechanics Physics of Materials (LMPM), University of SidiBel Abbes, BP 89, cite Ben M’hidi, SidiBel Abbes, 22000, Algeria
  • S. Benbarek Department of Mechanical Engineering, Laboratory Mechanics Physics of Materials (LMPM), University of SidiBel Abbes, BP 89, cite Ben M’hidi, SidiBel Abbes, 22000, Algeria
DOI
10.3221/IGF-ESIS.57.13
Pages
160-168
Published
Licence
CC BY 4.0
Published inVol. 15, No. 57 (2021)Go to the issue

Abstract

A lot of trans-femoral amputation patients experience skin breakdown due to the pressures and shear stresses in the stump-prosthesis interface. In this study, a finite element model was employed to investigate the stresses at the stump interface in the case of an orthopedic implant fixed to the cut end of the femur. By changing the stiffness of this implant, we aim to see how the stiffness of this implant affects the stresses in the interface between the amputated limb and the prosthesis. To find out the effects of implant stiffness, five values for the elastic modulus, ranging from 0.1 to 0.5 Mpa, with an interval of 0.1 Mpa were employed in the implant structure of the FE model.

Obtained results show that the implant played important role in reducing the stresses at the stump-prosthesis interface where the contact pressure did not exceed 53 Kpa and 17.3 Kpa for shear stress in the stiffer case of an implant, while the contact pressure in the case of femur without implant exceeded 79Kpa and 42 Kpa for shear stress. We also noted that the intensity of the contact pressure and the shear stress is proportional to the stiffness of the implant, as the greater the implant stiffness, the higher the peak of these stresses.

Keywords

Article history

  1. ReceivedUntil the next stage: 29 days
  2. Revision requestedUntil the next stage: 2 days
  3. RevisedUntil the next stage: 20 days
  4. AcceptedUntil the next stage: 16 days
  5. Published

How to cite

APA

Boudjemaa, I., Sahli, A., Benkhettou, A., & Benbarek, S. (2021). Preliminary results on the effects of orthopedic implant stiffness fixed to the cut end of the femur on the stress at the stump-prosthetic interface. Fracture and Structural Integrity, 15(57), 160–168. https://doi.org/10.3221/IGF-ESIS.57.13

IEEE

I. Boudjemaa, A. Sahli, A. Benkhettou, and S. Benbarek, “Preliminary results on the effects of orthopedic implant stiffness fixed to the cut end of the femur on the stress at the stump-prosthetic interface,” Fracture and Structural Integrity, vol. 15, no. 57, pp. 160–168, 2021, doi: 10.3221/IGF-ESIS.57.13.

MLA

Boudjemaa, Ismail, et al. “Preliminary results on the effects of orthopedic implant stiffness fixed to the cut end of the femur on the stress at the stump-prosthetic interface.” Fracture and Structural Integrity, vol. 15, no. 57, 2021, pp. 160–168. https://doi.org/10.3221/IGF-ESIS.57.13.

Chicago

Boudjemaa, Ismail, A. Sahli, A. Benkhettou, and S. Benbarek. 2021. “Preliminary results on the effects of orthopedic implant stiffness fixed to the cut end of the femur on the stress at the stump-prosthetic interface.” Fracture and Structural Integrity 15 (57): 160–168. https://doi.org/10.3221/IGF-ESIS.57.13.

Harvard

Boudjemaa, I., Sahli, A., Benkhettou, A. and Benbarek, S. (2021) ‘Preliminary results on the effects of orthopedic implant stiffness fixed to the cut end of the femur on the stress at the stump-prosthetic interface’, Fracture and Structural Integrity, 15(57), pp. 160–168. doi: 10.3221/IGF-ESIS.57.13.

Vancouver

Boudjemaa I, Sahli A, Benkhettou A, Benbarek S. Preliminary results on the effects of orthopedic implant stiffness fixed to the cut end of the femur on the stress at the stump-prosthetic interface. Fracture and Structural Integrity. 2021;15(57):160-168. doi:10.3221/IGF-ESIS.57.13

BibTeX

@article{boudjemaa2021, author = {Boudjemaa, Ismail and Sahli, A. and Benkhettou, A. and Benbarek, S.}, title = {Preliminary results on the effects of orthopedic implant stiffness fixed to the cut end of the femur on the stress at the stump-prosthetic interface}, journal = {Fracture and Structural Integrity}, year = {2021}, volume = {15}, number = {57}, pages = {160--168}, doi = {10.3221/IGF-ESIS.57.13}, url = {https://doi.org/10.3221/IGF-ESIS.57.13}, issn = {1971-8993} }

RIS

TY - JOUR AU - Boudjemaa, Ismail AU - Sahli, A. AU - Benkhettou, A. AU - Benbarek, S. TI - Preliminary results on the effects of orthopedic implant stiffness fixed to the cut end of the femur on the stress at the stump-prosthetic interface JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2021 DA - 2021/06/22 VL - 15 IS - 57 SP - 160 EP - 168 DO - 10.3221/IGF-ESIS.57.13 UR - https://doi.org/10.3221/IGF-ESIS.57.13 SN - 1971-8993 ER -

Licence

Creative Commons Attribution 4.0 International

May be shared and adapted, provided appropriate credit is given. Copyright © 2021 Ismail Boudjemaa, A. Sahli, A. Benkhettou, S. Benbarek.

Copyright 
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.  

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