Модел фемура за статичку анализу методом коначних...
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Модел фемура за статичку анализу методом коначних
елемената
Др Снежана Вуловић,
мр Никола Коруновић
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Материјалне карактеристике кости и
имплантата
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C.J. Brown, C.J. Wang, A.L. Yettram, P. Procter, Intramedullary nails with two lag screws, Clinical Biomechanics 19 (2004) 519–525
• Implant material:Stainless steel: Young’s modulus 210 GPa; Poisson’s ratio 0.3
• Femur: Cortical bone: Young’s modulus 17GPaCancellous bone: Young’s modulus 1.3 GPaIntertrochanteric region: modulus 0.32 GPa
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K. Sitthiseripratip, H. Van Oosterwyck, J. Vander Sloten, B. Mahaisavariya, E.L.J. Bohez, J. Suwanprateeb, R. Van Audekercke, P. Oris, Finite element study of trochanteric gamma nail for trochanteric fracture, Medical Engineering & Physics 25 (2003) 99–106
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B. Serala, J.M. Garcia, J. Cegonino, M. Doblare, F. Seral, Finite element study of intramedullary osteosynthesis in the treatment of trochanteric fractures of the hip: Gamma and PFN, Injury, Int. J. Care Injured (2004) 35, 130-135
The mechanical properties of the implants: modulus of elasticity 2.00E5 N/mm2
Poisson’s ratio of 0.28.
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Ching-Lung Tai, Chun-Hsiung Shih, Weng-Pin Chen, Shiuann-Sheng Lee, Yu-Liang Liu, Pang-Hsin Hsieh, Wen-Jer Chen, Finite element analysis of the cervico-trochanteric stemless femoral prosthesis, Clinical Biomechanics 18 (2003) S53–S58
modulus of elasticity Poisson’s ratios Cortical bone (composite glass fiber/epoxy resin) 14.2 GPa 0.3Cancellous bone (polyurethane foam) 50MPa 0.3C-T (titanium) 110 GPa 0.3PCA (Co–Cr alloy) prosthesis 220 GPa 0.3
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J. Schmitt, J. Meiforth, M. Lengsfeld, Development of a hybrid finite element model for individual simulation of intertrochanteric osteotomies, Medical Engineering & Physics 23 (2001) 529–539
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J. Cubillo, C. J. Wang, Numerical Analysis of a Femur Resurfacing Cup, ISB XXth Congress - ASB 29th Annual Meeting, July 31 - August 5, Cleveland, Ohio
modulus of elasticity Poisson’s ratios Cortical bone 17000 MPa 0.3Cancellous bone 1300 MPa 0.3femur trochanteric 320 MPa 0.3Cobalt Chromium 210000 MPa 0.3Cement 2200 MPa i 2800 MPa
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K. Stoffel, U. Dieter, G. Stachowiak, A. Gächter, and M. S. Kuster, Biomechanical testing of the LCP –how can stability in locked internal fixators be controlled?, Injury, Int. J. Care Injured 34 (2003) S-B11–S-B19
• Implant material - pure titanium: Young’s modulus 115 GPa Poisson’s ratio 0.34 Stainless steel: E= 220 GPa; Poisson’s ratio 0.34
• Tibia: Cortical bone: Young’s modulus 17 GPa; Poisson’s ratio 0.3 Cancellous bone:Young’s modulus 700 MPa; Poisson’s ratio 0.2