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Aseptic loosening of femoral components - Materials engineering and design considerations
Bahraminasab, M ; Sharif University of Technology | 2013
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- Type of Document: Article
- DOI: 10.1016/j.matdes.2012.07.066
- Publisher: 2013
- Abstract:
- Aseptic loosening is one of the main reasons for the revision of a total knee replacement (TKR). The design of the key component of a TKR, the femoral component, is particularly problematic because its failure can be the result of different causes. This makes the development of new biomaterials for use in the femoral component a challenging task. This paper focuses on the engineering design aspects in order to understand the limitationsof current materials and design deficiencies. The paper describes the introduction of a new biomaterial for a femoral component and justifies the recommendation to use multi-functional materials as a possible solution to aseptic loosening. The potential advantages of applying functionally graded biomaterials (FGBMs) in prosthetic femur are explained by reducing the leading causes of failure including wear, micro-motion and stress-shielding effect. The ideas presented in this paper can be used as the basis for further research on the feasibility and advantages of applying FGBM in other superior implant designs
- Keywords:
- Composites ; Design considerations ; Design deficiencies ; Engineering design ; Functionally graded ; Materials engineering ; Multi-functional materials ; Selection for material properties ; Total knee replacement ; Arthroplasty ; Biological materials ; Biomaterials ; Composite materials ; Design ; Functional materials ; Functionally graded materials ; Implants (surgical) ; Knee prostheses
- Source: Materials and Design ; Volume 44 , February , 2013 , Pages 155-163 ; 02641275 (ISSN)
- URL: http://www.sciencedirect.com/science/article/pii/S0261306912005183