مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Information Journal Paper

Title

Numerical Evaluation of a Porous Tibial-Knee Implant using Gyroid Structure

Pages

  75-82

Abstract

 Background: Porous materials are recommended for orthopedic applications as they eliminate issues of interfacial instability with tissues and reduce mechanical mismatch of the young’, s modulus. Objective: The current research provides a finite element analysis (FEA) to investigate Porous gyroid Ti6Al4V structure compared to a solid stem model for human tibial-knee implantation of Total Knee Replacement (TKR). Material and Methods: In this study, the implant proximal portion was designed as Porous gyroid Ti6Al4V structure with 500 μ, m pore size. CATIA V5R18 was used for modeling both gyroid and full solid models. Structural analysis was carried out using ANSYS R18. 1 to evaluate the implant performance. Results: After gyroid implantation, the maximum Von-Mises Stress obtained under the tibial tray was increased to 10. 081 MPa. Also, the maximum Shear Stress at the stem/bone interface was reduced to 0. 7347 MPa. The stress concentration at the stem tip and the bone strain energy were also improved. The minimum factor of safety is 4. 6 for the gyroid Porous implant. A proof of concept model was additively manufactured successfully with pore size 577. 7733 ±,34. 762 μ, m. Conclusion: The results indicated enhanced clinical performance of the Porous tibial-knee implant compared to the solid titanium implant via increasing the maximum von-Mises bone stresses and decreasing the maximum Shear Stress at the bone/ implant interface.

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    APA: Copy

    Eltlhawy, Basma, FOUDA, NOHA, & Eldesouky, Ibrahim. (2022). Numerical Evaluation of a Porous Tibial-Knee Implant using Gyroid Structure. JOURNAL OF BIOMEDICAL PHYSICS AND ENGINEERING, 12(1), 75-82. SID. https://sid.ir/paper/987614/en

    Vancouver: Copy

    Eltlhawy Basma, FOUDA NOHA, Eldesouky Ibrahim. Numerical Evaluation of a Porous Tibial-Knee Implant using Gyroid Structure. JOURNAL OF BIOMEDICAL PHYSICS AND ENGINEERING[Internet]. 2022;12(1):75-82. Available from: https://sid.ir/paper/987614/en

    IEEE: Copy

    Basma Eltlhawy, NOHA FOUDA, and Ibrahim Eldesouky, “Numerical Evaluation of a Porous Tibial-Knee Implant using Gyroid Structure,” JOURNAL OF BIOMEDICAL PHYSICS AND ENGINEERING, vol. 12, no. 1, pp. 75–82, 2022, [Online]. Available: https://sid.ir/paper/987614/en

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