Virtual Implantology System Used for Long Bones Simulation Studies

Abstract:

The basic concepts of Kuntscher's centromedular osteosynthesis remain largely valid today: centromedular osteosynthesis must be conducted under fluoroscopic control and without fracture outbreak exposure to avoid contamination, the rod must be strong enough to withstand stress caused by muscle contraction, joint movement and body weight load, this to avoid twisting and tearing the rod, the rod must exhibit sufficient elasticity to compress during insertion into the canal and then re-expand for firmly fix the fracture fragments and prevent their rotation. On the other hand, osteosynthesis with flexible centromedullary rods is mainly used in pediatric surgery where elastic rods in secant arch are used applying the principles of stable elastic osteosynthesis. Starting from the research done worldwide, we examined the orthopedic implants used in the long bones as a whole and some inconsistencies were found between the osteosynthesis material and the bone tissue. The necessary materials used in the study are orthopedic implants, different in structure, elasticity, dimensions, which were tested on bone virtual models, according to the CT scan sections. With the help of normal bone virtual models, both bone strength, various orthopedic implants, and the resistance of the osteosynthesis material used were taken into account. On these complete virtual models various simulations were made using FEM. The potential for FEM use in orthopedics and biomechanics has often been overestimated. In many situations, inappropriate use of the method on complicated biological structures can become costly, inefficient or prone to errors. Also, nonlinear soft tissue material has created new difficulties. But these disadvantages and limitations have been diminished successively through new results of biomechanical researches, but also by improving the method by using new types of finite elements. From this results database obtained through various virtual experiments, account will be taken of the most common accidents and incidents occurring in the implanted bone, and solutions will be sought to improve post-implant bone quality.

• Periodical: Advanced Engineering Forum (Volume 34)
• Pages: 151-158
• DOI: https://doi.org/10.4028/www.scientific.net/AEF.34.151
• Online since: October 2019
• Authors: Ilaria Lorena Petrovici, Mihai Catalin Tenovici, Razvan Cristian Vaduva, Danut Nicolae Tarnita, Dragos Laurentiu Popa, Georgiana Vintila, Otilia Rogoveanu, Bogdan Capitanescu
• Keywords: Bone Virtual Model, CT Image, FEA Simulation, Software Methods, Virtual Implantology

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