Carbon/PEEK composite materials as an alternative for stainless steel/titanium hip prosthesis: a finite element study

被引:0
作者
Farshid Rezaei
Kamran Hassani
Nosratollah Solhjoei
Alireza Karimi
机构
[1] Islamic Azad University,Department of Mechanical Engineering, Najafabad Branch
[2] Islamic Azad University,Department of Biomechanics, Science and Research Branch
[3] Iran University of Science and Technology,Tissue Engineering and Biological Systems Research Laboratory, School of Mechanical Engineering
[4] Kyushu University,Department of Mechanical Engineering
来源
Australasian Physical & Engineering Sciences in Medicine | 2015年 / 38卷
关键词
Femoral prosthesis; Hip replacement; Composite materials; Stress; Strain; Finite element analysis;
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学科分类号
摘要
Total hip replacement (THR) has been ranked within the most typical surgical processes in the world. The durability of the prosthesis and loosening of prosthesis are the main concerns that mostly reported after THR surgeries. In THR, the femoral prosthesis can be fixed by either cement or cementless methods in the patient’s bones. In both procedures, the stability of the prosthesis in the hosted bone has a key asset in its long-term durability and performance. This study aimed to execute a comparative finite element simulation to assess the load transfer between the prosthesis, which is made of carbon/PEEK composite and stainless steel/titanium, and the femur bone. The mechanical behavior of the cortical bone was assumed as a linear transverse isotropic while the spongy bone was modeled like a linear isotropic material. The implants were made of stainless steel (316L) and titanium alloy as they are common materials for implants. The results showed that the carbon/PEEK composites provide a flatter load transfer from the upper body to the leg compared to the stainless steel/titanium prosthesis. Furthermore, the results showed that the von Mises stress, principal stress, and the strain in the carbon/PEEK composites prosthesis were significantly lower than that made of the stainless steel/titanium. The results also imply that the carbon/PEEK composites can be applied to introduce a new optimum design for femoral prosthesis with adjustable stiffness, which can decrease the stress shielding and interface stress. These findings will help clinicians and biomedical experts to increase their knowledge about the hip replacement.
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页码:569 / 580
页数:11
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  • [1] Froimson MI(2007)Minimum 10-year results of a tapered, titanium, hydroxyapatite-coated hip stem: an independent review J Arthroplast 22 1-7
  • [2] Garino J(2008)Probabilistic design of a newly designed cemented hip prosthesis using finite element method Mater Des 29 963-971
  • [3] Machenaud A(2010)Design considerations for ceramic resurfaced femoral head: effect of interface characteristics on failure mechanisms Comput Methods Biomech Biomed Eng 13 143-155
  • [4] Vidalain J(2001)A finite element analysis of hollow stemmed hip prostheses as a means of reducing stress shielding of the femur J Biomech 34 995-1003
  • [5] Kayabasi O(1999)Effect of stem stiffness and bone stiffness on bone remodeling in cemented total hip replacement J Arthroplast 14 149-158
  • [6] Ekici B(2010)Biomedical implants: corrosion and its prevention-a review Recent Pat Corros Sci 2 40-54
  • [7] Pal B(2001)Biomedical applications of polymer-composite materials: a review Compos Sci Tech 61 1189-1224
  • [8] Gupta S(2013)Tribological properties of carbon/PEEK composites Science 14 98-106
  • [9] New AM(1990)Stiffness and strength tailoring of a hip prosthesis made of advanced composite materials J Biomed Mater Res 24 873-899
  • [10] Gross S(2007)Three-dimensional anatomic finite element modelling of hemi-arthroplasty of human hip joint Trends Biomater Artif Organs 21 63-72