Computer simulation of mechanical strength compared between straight and wave plates for femoral application through finite elements
DOI:
https://doi.org/10.33448/rsd-v11i12.34710Keywords:
Finite Element Analysis; Femoral Fractures; Musculoskeletal system.Abstract
The objective of this study was to evaluate, by means of computer simulation, the difference in mechanical strength between two plate models straight and wave used in femur fracture fixation, submitting both to a progressive static axial load. There are criteria to evaluate the yield strength of a material: Tresca, Von Mises and Mohr-Coulomb. In this study, the Von-Mises strain criterion theory was used because it is used in fatigue strength tests of ductile materials, in this case, stainless steel. This criterion, indicates that the yielding of a solid material begins when it reaches a critical stress value. The models were built computationally using 3D modeling software. The finite element mathematical method was used to evaluate the stress and strain curve, two elements considered fundamental to verify the behavior of the metal during the application of stress and the displacement of the plates, to thus evaluate the strength of each. The results obtained after the finite element analysis show that the plates do not reach the critical limit for yielding, but the straight plate absorbs 10 times more stress compared to the wave plate. The wave plate allows the conclusion that there is decomposition of the applied force. Both plates remain in the elastic regime with load up to 1000 N. The load is equivalent to the weight of the body and gravity. It was concluded that the axial force applied in the caudal direction decomposes into resulting ones compared to the straight plate, which absorbs all the load and may reach the critical limit for yielding before the wave plate.
References
American Society for Testing and Materials - ASTM. (2013). Standard specification for wrought titanium-6Aluminum-4Vanadium ELI (extra low interstitial) alloy for surgical implant applications (UNS R56401). ASTM F136-13.
Angelini, A. J (2001). Ensaio mecanico de compressão estatica comparada entre placas retas e pre-moldadas em onda. Dissertação mestrado, Programa de Pós-Graduação em Cirugia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, Brasil.
Blatter, G., & Weber, B. G. (1990). Wave plate osteosynthesis as a salvage procedure. Archives of orthopaedic and trauma surgery, 109(6), 330–333.
Cooper, R. J., Wilcox, R. K., & Jones, A. C. (2019). Finite element models of the tibiofemoral joint: A review of validation approaches and modelling challenges. Medical engineering & physics, 74, 1-12.
Dias, D. F., & Gonçalves, S. J. da C. (2021). Failures in hip implants. Research, Society and Development, 10(11), e357101119668.
Duncan, R. L., & Turner, C. H. (1995). Mechanotransduction and the functional response of bone to mechanical strain. Calcified tissue international, 57(5), 344–358.
Gutzeit, E. M., Lopes, T. V., Campos, S. C. de., Barreto, B. de O. C., Wehbe, C., Gonçalves, F. G. A., Lopes, I. V., Silva, J. N. da., Rodrigues, J. C., Reimann, R. S., & Ferraz, S. V. (2022). Assessment of the profile of victims of femur fractures treated at an urgent and emergency hospital in the Brazilian western Amazon. Research, Society and Development, 11(4), e44311426580.
Hornik, K., & Grün, B. (2014). On maximum likelihood estimation of the concentration parameter of von Mises–Fisher distributions. Computational statistics, 29(5), 945-957.
Izzawati, B., Daud, R., Rojan, A., Majid, M. A., Najwa, M. N., Zain, N. A. M., & Azizan, A. F. (2019). The effect of bone healing condition on the stress of screw fixation in orthotropic femur bone for fracture stabilization. Materials Today: Proceedings, 16, 2160-2169.
Jorge, S. R. N., Cocco, L. F., Kawano, C., Fernandes, H. J. A., & Reis, F. B. D. (2006). The wave plate method in non union femoral shaft fractures treatment. Acta Ortopédica Brasileira, 14, 17-21.
Khanfour, A. A., & Zakzouk, S. A. (2012). Distal femur non-union after interlocked intramedullary nailing. Successful augmentation with wave plate and strut graft. Acta orthopaedica Belgica, 78(4), 492–499.
Kojima, K. E., & Pires, R. (2017). Absolute and relative stabilities for fracture fixation: the concept revisited. Injury, 48 Suppl 4, S1.
Kojima, K. E., Hungria Neto, J. S., & Fucs, P. M. (2010). In vitro evaluation of the influence of the wave length and height in the wave-plate osteosynthesis. Archives of orthopaedic and trauma surgery, 130(9), 1133-1139.
Kouhi, E., Masood, S., & Morsi, Y. (2008). Design and fabrication of reconstructive mandibular models using fused deposition modeling. Assembly automation.
Orava, H., Huang, L., Ojanen, S. P., Mäkelä, J., Finnilä, M., Saarakkala, S., Herzog, W., Korhonen, R. K., Töyräs, J., & Tanska, P. (2022). Changes in subchondral bone structure and mechanical properties do not substantially affect cartilage mechanical responses - A finite element study. Journal of the mechanical behavior of biomedical materials, 128, 105129.
Machado, E. A., Santo, F. H. do E., Ribeiro, M. de N. de S., Silvino, Z. R., Cardoso, R. da S. S., Almeida, E. G. R., & Aranha, J. dos S. (2020). Aging and fall prevention: overview of the nursing team of a Transition Hospital. Research, Society and Development, 9(10), e2749108566.
Marongiu, G., Dolci, A., Verona, M., & Capone, A. (2020). The biology and treatment of acute long-bones diaphyseal fractures: Overview of the current options for bone healing enhancement. Bone reports, 12, 100249.
Matter, P. (1998). History of the AO and its global effect on operative fracture treatment. Clinical orthopaedics and related research, (347), 11-18.
Nassiri, M., MacDonald, B., & O'byrne, J. M. (2013). Computational modelling of long bone fractures fixed with locking plates–How can the risk of implant failure be reduced?. Journal of Orthopaedics, 10(1), 29-37.
Patel, R. R., Valles, D., Riveros, G. A., Thompson, D. S., Perkins, E. J., Hoover, J. J., & Tordesillas, A. (2018). Stress flow analysis of bio-structures using the finite element method and the flow network approach. Finite Elements in Analysis and Design, 152, 46-54.
Perren, S. M., Huggler, A., Russenberger, M., Straumann, F., M¨ ller, M. E., & Allgöwer, M. (1969). A method of measuring the change in compression applied to living cortical bone. Acta Orthopaedica Scandinavica, 40(sup125), 1-63.
Pereira de Andrade, J., Zvicker da Silva, D., & Silva Patrício, D. (2020). Incidência dos casos de fratura de fêmur no brasil entre 2015 e 2020 através de dados epidemiológicos do datasus: faixa etária e gênero. Scientia Generalis, 1(3), 84–91.
Reis, F. B. D., Hungria Neto, J. S., & Pires, R. E. S. (2005). Pseudartrose. Rev. bras. ortop, 79-88.
Ring, D., Jupiter, J. B., Sanders, R. A., Quintero, J., Santoro, V. M., Ganz, R., & Marti, R. K. (1997). Complex nonunion of fractures of the femoral shaft treated by wave-plate osteosynthesis. The Journal of bone and joint surgery. British volume, 79(2), 289–294.
Santos Júnior, J. E., & Silva, R. B. B. da. (2021). Femur fractures in the elderly in Northeast Brazil: epidemiological data and expenses for the SUS. Research, Society and Development, 10(14), e180101421984.
Szejnfeld, V. L., Jennings, F., Castro, C. H. D. M., Pinheiro, M. D. M., & Lopes, A. C. (2007). Conhecimento dos médicos clínicos do Brasil sobre as estratégias de prevenção e tratamento da osteoporose. Revista Brasileira de Reumatologia, 47, 251-257.
Uliana, C. S., Bidolegui, F., Kojima, K., & Giordano, V. (2021). Augmentation plating leaving the nail in situ is an excellent option for treating femoral shaft nonunion after IM nailing: a multicentre study. European journal of trauma and emergency surgery: official publication of the European Trauma Society, 47(6), 1895–1901.
Viceconti, M. (2019). Predicting bone strength from CT data: clinical applications. Morphologie, 103(343), 180-186.
Weber, B. G., & Cech, O.: "Pseudarthrosis of the humerus", in Pseudarthrosis, Bern, Hans Huber, 1976. p. 108-119.
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Copyright (c) 2022 Rogério Santos Vargas; Jonatas Comparin Araldi; Deise Renata Bringmann; Asdrubal Falavigna; Leandro Luis Corso

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