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http://dx.doi.org/10.7315/CDE.2016.426

Comparison of Biomechanical Stability of Custom-made Hip Implants using Finite Element Analysis  

Jun, Yongtae (Department of Mechanical Engineering, Sejong University)
Publication Information
Korean Journal of Computational Design and Engineering / v.21, no.4, 2016 , pp. 426-432 More about this Journal
Abstract
Designing a morphologically well-fitted hip implant to a patient anatomy is desirable to improve surgical outcomes since a commercial ready-made hip implant may not well conform to the patient joint. In this study, biomechanical stability of patient-specific hip implants with two different stem lengths was compared and discussed using a 3D finite element analysis (FEA). The FEA results in this study showed that an increase in stem length brings about more the peaked von-Mises stress (PVMS) in the prosthesis and less in the femur. However the decrease in von-Mises stress in the femur causes stress shielding phenomenon that usually leads to considerable bone resorption. Although, in biomechanical stability point of view, this work recommends the use of smaller stems, the length of stem must be determined by considering both the von-Mises stress and the stress-shielding phenomenon.
Keywords
Biomechanical stability; Cementless total hip arthroplasty; Custom-made design; Finite element analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Levangie, P. and Norkin, C., 2011, Joint Structure & Function: A Comprehensive Analysis, The F.A. Davis Company, Philadelphia, Pennsylvania.
2 Seo, J.W. and Jun, Y., 2008, Extracting 3D Geometry Parameters of Hip Joint for Designing a Custom-Made Hip Implant, Transactions of the Society of CAD/CAM Engineers, 13(35), pp.200-208.
3 Herrera, A., Rebollo, S., Ibarz, E., Mateo, J., Gabarre, S. and Gracia, L., 2014, Mid-term Study of Bone Remodeling after Remoral Cemented Stem Implantation: Comparison between DXA and Finite Element Simulation, The Journal of Arthroplasty, 29, pp.90-100.   DOI
4 Jun, Y. and Lim, E., 2016, Finite Element Analysis of custom-made implants in cementless Total Hip Arthroplasty, Proceedings of the Society of KSME in Production and Design Engineering Conference, Yeosu, Korea, pp.55-56.
5 Han, P., Jang, Y., Yoo, O., Kim, J., Kim, H. and Lim, D., 2013, Evaluation of Biomechanical Stability of Newly Developed Revision Total Knee Arthroplasty Through Strain and stress Distribution Analysis Within the Tibia: Finite Element Analysis, Journal of Biomedical Engineering Research, 34, pp.14-23.   DOI
6 Au, A.G., Raso, V.J. and Liggins, A.B., 2007, Contribution of Loading Conditions and Material Properties to Stress Shielding Near the Tibial Component of Total Knee Replacement, Journal of Biomechanics, Vol. 40, No. 6, pp.1410-1416.   DOI