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Eltlhawy, Basma, Fouda, Noha, Eldesouky, Ibrahim. (1400). Numerical Evaluation of a Porous Tibial-Knee Implant using Gyroid Structure. سامانه مدیریت نشریات علمی, 12(1), 75-82. doi: 10.31661/jbpe.v0i0.2005-1116
Basma Eltlhawy; Noha Fouda; Ibrahim Eldesouky. "Numerical Evaluation of a Porous Tibial-Knee Implant using Gyroid Structure". سامانه مدیریت نشریات علمی, 12, 1, 1400, 75-82. doi: 10.31661/jbpe.v0i0.2005-1116
Eltlhawy, Basma, Fouda, Noha, Eldesouky, Ibrahim. (1400). 'Numerical Evaluation of a Porous Tibial-Knee Implant using Gyroid Structure', سامانه مدیریت نشریات علمی, 12(1), pp. 75-82. doi: 10.31661/jbpe.v0i0.2005-1116
Eltlhawy, Basma, Fouda, Noha, Eldesouky, Ibrahim. Numerical Evaluation of a Porous Tibial-Knee Implant using Gyroid Structure. سامانه مدیریت نشریات علمی, 1400; 12(1): 75-82. doi: 10.31661/jbpe.v0i0.2005-1116

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

Journal of Biomedical Physics and Engineering
مقاله 8، دوره 12، شماره 1، فروردین و اردیبهشت 2022، صفحه 75-82    اصل مقاله (1.27 M)
نوع مقاله: Original Research
شناسه دیجیتال (DOI): 10.31661/jbpe.v0i0.2005-1116
نویسندگان
Basma Eltlhawy* 1؛ Noha Fouda2؛ Ibrahim Eldesouky2
1PhD Candidate, Assistant Lecturer, Department of Mechanical Engineering, Higher Future Institute of Engineering and Technology, Mansoura, Egypt
2PhD, Department of Production and Mechanical Design Engineering, Faculty of Engineering, Mansoura University, Egypt
چکیده
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 µm 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 µm.
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.
کلیدواژه‌ها
Total Knee Replacement؛ Porous؛ Knee Prosthesis؛ Titanium Alloy (Ti6Al4V)؛ Von-Mises Stress؛ Shear Stress
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مراجع
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