Three-Dimensional Virtual Model Used to Analyze a Normal and Prosthetic Human Joint

Abstract:

Prosthetic alignment is one of the most important factors, both in terms of the correct functioning of neoarticulation and the survival duration of knee arthroplasty. Significant changes in the alignment of prosthetic components affect the distribution of stress in the knee joint. These changes may also affect the distribution of stresses on the contact surface, soft knee joints, and the subjacent bone remodeling under these forces. The malposition of the components and, in particular, the tibial component in the varus, which in practice is the most common situation alongside the malrotation of the femoral component, leads to the excessive intimal tension of the internal tibial plate by the summing of the additional stresses at this level with its physiological loading from during the unipodal support phase during the walk. Although valuable, all of these studies have no capacity to assess these changes in the kinetics of in vivo knee arthroplasty. Two methods are used for this: telemetry and mathematical models. Traditionally, telemetry has been used to determine the forces acting on the hip, and more recently, on the knee. It values ​​very precisely the value of the axial rotation forces as well as the moments of bending; however, this method is little used, because the necessary equipment is very expensive. Taking this into account, the most used method is the finite element method. The objective of this study was to investigate the effect of malpositioning in the valgus and varus of the tibial component on tension developed in polyethylene as well as in the subjacent bone. Obviously, other situations have also been analyzed. In this direction a series of original numerical models of the anatomical elements (tibia, fibula, femur) of the knee were constructed to simulate the biomechanical phenomena occurring in the normal and prosthetic joint during physical activities, in order to evaluate the factors that influence the duration operation of total knee prostheses.

• Periodical: Advanced Engineering Forum (Volume 34)
• Pages: 159-164
• DOI: https://doi.org/10.4028/www.scientific.net/AEF.34.159
• Online since: October 2019
• Authors: Mihai Catalin Tenovici, Ilaria Lorena Petrovici, Razvan Cristian Vaduva, Danut Nicolae Tarnita, Dragos Laurentiu Popa*, Dana Albulescu, Bogdan Capitanescu
• Keywords: CT Image, FEA Simulation, Software Methods, Virtual Bones, Virtual Prosthesis

References

[1] L. Gruionu, P.L. Rinderu, A computational study of the tibial component biomechanical behavior in total knee arthroplasty, In 2005 Annual Fall Meeting, Baltimore, USA: BMES, (2005).

[2] C. Bratianu, P. Rinderu, L. Gruionu, A 3D finite element model of a knee for joint contact stress analysis during sport activities, Key Engineering Materials, vol. 261, (2004) 513-518.

DOI: 10.4028/www.scientific.net/kem.261-263.513

[3] D. Popa, D. Tarnita, I. Iordachita, Study method for human knee applicable to humanoid robots, The 14th International Workshop on Robotics in Alpe-Adria-Danube Region, RAAD, vol.5, (2005) 26-28.

DOI: 10.1109/raad.2010.5524565

[4] D.L. Popa, G. Buciu, D .Grecu, D. Niculescu, L. Chiutu, M. Stoica, Studies about virtual behavior of tibia fractures and nails during the fixation process, JIDEG, no.8, (2013) 5-10.

[5] D. Tarnita, D.N. Tarnita, N. Bizdoaca, D. Popa, Contributions on the dynamic simulation of the virtual model of the human knee joint, Materialwissenschaft und Werkstofftechnik: Entwicklung, Fertigung, Prüfung, Eigenschaften und Anwendungen technischer Werkstoffe, vol. 40, no. 1-2, (2009) 73-81.

DOI: 10.1002/mawe.200800375

[6] D.L. Popa, A. Duta, D. Tutunea, G. Gherghina, G. Buciu, D. C. Calin, Virtual Methods Applied to Human Bones and Joints Re-Construction Used for Orthopedic Systems, Applied Mechanics and Materials, vol. 822, (2016) 160-165.

DOI: 10.4028/www.scientific.net/amm.822.160

[7] D. Popa, D.N. Tarnita, D. Tarnita, D. Grecu, The generation of the three-dimensional model of the human knee joint, Romanian Journal of Morphology and embryology, vol.46 no.4, (2005) 3-6.

[8] D. Tarnita, D. Popa, D. N. Tarnita, D. Grecu, CAD method for 3D model of the tibia bone and study of stresses using the finite element method, Rom J Morphol Embryol, ISSN 1220-0522, Vol. 47. No.2, (2006) 181-186.

[9] G. Buciu, D.L. Popa, D. Grecu, D. Niculescu, R. Nemes, Virtual comparative study on the use of nails at the fixation of tibial fractures using finite element method, Proceedings of The 4th International Conference ²Advanced Composite Materials Engineering ² COMAT 2012 Brasov Romania, Lux Libris Publishing House, (2012) 381-386.

[10] M. Vătu, M.M. Crăițoiu, D. Vintilă, V. Mercuț, M.S. Popescu, M. Scrieciu, L.D. Popa, Determination of resistance forces from mandibular movements through dynamic simulation using kinematic analysis and finite elements method, Romanian Journal of Oral Rehabilitation, Vol. 10 Issue: 1 (2018) pp.20-28.

[11] M. Vatu,. D. Vintila, D.L. Popa, 3D Skull Virtual Model Based on CT or MRI Images Used for Dentistry Simulations, Applied Mechanics and Materials, Vol. 880, (2018) 101-110.

DOI: 10.4028/www.scientific.net/amm.880.101

[12] A.D. Popa, A.M. Mogosanu, D.L. Popa, A. Duta, A. Teodorescu, Virtual and rapid prototyping methods applied in civil engineering: Snow, wind and earthquake simulations on a five storey building, FME Transactions, vol. 45, no. 2, (2017) 276-282.

DOI: 10.5937/fmet1702276p