TY - JOUR T1 - Optimization of Polyethylene Inserts Design Geometry of Total Knee Prosthesis TT - Optimization of Polyethylene Inserts Design Geometry of Total Knee Prosthesis AU - Öztürk, Burak AU - Uğur, Levent AU - Erzincanlı, Fehmi AU - Küçük, Özkan PY - 2018 DA - December Y2 - 2018 JF - International Scientific and Vocational Studies Journal JO - ISVOS PB - Umut SARAY WT - DergiPark SN - 2618-5938 SP - 31 EP - 39 VL - 2 IS - 2 LA - tr AB - Kneeprostheses are produced from biomaterials which are compatible with human body as a result of damage of cartilage tissue due to various health problems. These prostheses consist of polyethylene parts between the Tibial Component and the femoral component of the femur. Polyethylene insert is used to reduce wear mechanisms between both materials. In this study, design library design parameters required for obtaining a polyethylene insert design were determined. These design parameters were modeled in the Solid Works Computer Aided Design (CAD) Program according to the L27 experiment design for each design parameter S / N ratios for three different levels using the Taguchi Method. For the safety coefficient analysis of each design, maximum forces in the literature were determined and implemented in Ansys Computer Aided Engineering (CAE) Program. According to the results of this analysis, maximum stress, weight and safety coefficient changes of each design geometry were determined. S / N ratios and% effects of each design parameter were determined by applying Taguchi and Variance Analysis. According to these results, the design is optimized by selecting the levels of each design parameter for the minimum weight and maximum safety factor. On the other hand, stress change graphs were obtained in different sections of the design. In the literature, for the first time, the design geometry of the polyethylene part was modeled by parametric design and optimum design wasobtained. KW - Arthroplasty KW - Optimization in Design KW - Polyethylene Insert KW - Computer Aided Design (CAD) KW - Computer Aided Engineering (CAE) N2 - Kneeprostheses are produced from biomaterials whichare compatible with human body as a result of damage of cartilage tissue due tovarious health problems. These prostheses consist of polyethylene parts betweenthe Tibial Component and the femoral component of the femur. Polyethyleneinsert is used to reduce wear mechanisms between both materials. In this study,design library design parameters required for obtaining a polyethylene insertdesign were determined. These design parameters were modeled in the Solid WorksComputer Aided Design (CAD) Program according to the L27 experiment design foreach design parameter S / N ratios for three different levels using the TaguchiMethod. For the safety coefficient analysis of each design, maximum forces inthe literature were determined and implemented in Ansys Computer AidedEngineering (CAE) Program. According to the results of this analysis, maximumstress, weight and safety coefficient changes of each design geometry weredetermined. S / N ratios and% effects of each design parameter were determinedby applying Taguchi and Variance Analysis. According to these results, thedesign is optimized by selecting the levels of each design parameter for theminimum weight and maximum safety factor. On the other hand, stress changegraphs were obtained in different sections of the design. In the literature,for the first time, the design geometry of the polyethylene part was modeled byparametric design and optimum design wasobtained. CR - [1] S. Boran C. Hurson K. Synnott P. Keogh, ‘’Biomechanical analysis of tibial tray fractures post total knee Arthroplasty’’, Eur J Orthop Surg Traumatol, 15, 295–299, 2005 CR - [2] C. Luring L. 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Morrison, Shilesh J. and Amit P., ‘’Design of an Advanced Bearing System for Total Knee Arthroplasty, Lubricants’’, 3, 475-492, 2015 CR - [11] B.R. Rawala, Amit Y., Vinod P., ‘’Life estimation of knee joint prosthesis by combined effect of fatigue and wear’’, Procedia Technology, 23, 60 – 67, 2016 CR - [12] Tomaso V., Francesco M., Dario G., Maurizio C., Riccardo P., ‘’Contact stresses and fatigue life in a knee prosthesis: comparison between in vitro measurements and computational simulations’’, Journal of Biomechanics, 37, 45–53, (2004) UR - https://dergipark.org.tr/tr/pub/bilmes/issue//474039 L1 - https://dergipark.org.tr/tr/download/article-file/615136 ER -