Enhanced orthopedic implant design for transfemoral amputation incorporating a honeycomb structure technology
Boudjemaa, Ismail; Khatir, Omar; Hamada, Atef; Benkhettou, Abdelkader; Sahli, Abderahmene; Abdoune, Yamina; Ghali, Drici (2024-08-24)
Avaa tiedosto
Sisältö avataan julkiseksi: 24.08.2025
Taylor & Francis
24.08.2024
Boudjemaa, I., Khatir, O., Hamada, A., Benkhettou, A., Sahli, A., Abdoune, Y., & Ghali, D. (2024). Enhanced orthopedic implant design for transfemoral amputation incorporating a honeycomb structure technology. Mechanics of Advanced Materials and Structures, 1–7. https://doi.org/10.1080/15376494.2024.2394988
https://creativecommons.org/licenses/by-nc/4.0/
This is an Accepted Manuscript version of the following article, accepted for publication in Mechanics of advanced materials and structures. Boudjemaa, I., Khatir, O., Hamada, A., Benkhettou, A., Sahli, A., Abdoune, Y., & Ghali, D. (2024). Enhanced orthopedic implant design for transfemoral amputation incorporating a honeycomb structure technology. Mechanics of Advanced Materials and Structures, 1–7. https://doi.org/10.1080/15376494.2024.2394988. It is deposited under the terms of the Creative Commons Attribution-NonCommercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
https://creativecommons.org/licenses/by-nc/4.0/
This is an Accepted Manuscript version of the following article, accepted for publication in Mechanics of advanced materials and structures. Boudjemaa, I., Khatir, O., Hamada, A., Benkhettou, A., Sahli, A., Abdoune, Y., & Ghali, D. (2024). Enhanced orthopedic implant design for transfemoral amputation incorporating a honeycomb structure technology. Mechanics of Advanced Materials and Structures, 1–7. https://doi.org/10.1080/15376494.2024.2394988. It is deposited under the terms of the Creative Commons Attribution-NonCommercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
https://creativecommons.org/licenses/by-nc/4.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202409125815
https://urn.fi/URN:NBN:fi:oulu-202409125815
Tiivistelmä
Abstract
After lower limb amputation, the primary challenge is to facilitate the patient’s adoption of a prosthetic limb seamlessly, without encountering complications or discomfort. Elevated stress levels within the residual limb, experienced when wearing the socket and while standing or walking, contribute to patient discomfort. As an initial step in this study, we developed a finite element model of above-knee amputation. Additionally, we designed a prototype orthopedic implant composed of several parts, with the lower section featuring a honeycomb structure aimed at absorbing and diminishing stresses at the interface of the residual limb and prosthetic. In this study, finite element models with and without orthopedic implants were analyzed to assess the feasibility and impact of incorporating a honeycomb structure within the implants on stress distribution, particularly at the stump-prosthetic interface. Models with honeycomb-structured implants, at varying densities, showed a reduction in interface stress to approximately 2.15e-2 MPa and 2.01e-2 MPa, compared to 4.5e-2 MPa in model without honeycomb structure in the implant and 7.97e-2 MPa in models without any implants.
After lower limb amputation, the primary challenge is to facilitate the patient’s adoption of a prosthetic limb seamlessly, without encountering complications or discomfort. Elevated stress levels within the residual limb, experienced when wearing the socket and while standing or walking, contribute to patient discomfort. As an initial step in this study, we developed a finite element model of above-knee amputation. Additionally, we designed a prototype orthopedic implant composed of several parts, with the lower section featuring a honeycomb structure aimed at absorbing and diminishing stresses at the interface of the residual limb and prosthetic. In this study, finite element models with and without orthopedic implants were analyzed to assess the feasibility and impact of incorporating a honeycomb structure within the implants on stress distribution, particularly at the stump-prosthetic interface. Models with honeycomb-structured implants, at varying densities, showed a reduction in interface stress to approximately 2.15e-2 MPa and 2.01e-2 MPa, compared to 4.5e-2 MPa in model without honeycomb structure in the implant and 7.97e-2 MPa in models without any implants.
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