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Journal of Long-Term Effects of Medical Implants

Publicou 4 edições por ano

ISSN Imprimir: 1050-6934

ISSN On-line: 1940-4379

SJR: 0.184 SNIP: 0.485 CiteScore™:: 1.1 H-Index: 39

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Optimization of Spinal Implant Screw for Lower Vertebra through Finite Element Studies

Volume 24, Edição 2-3, 2014, pp. 99-108
DOI: 10.1615/JLongTermEffMedImplants.2014006264
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RESUMO

The increasing older population is suffering from an increase in age-related spinal degeneration that causes tremendous pain. Spine injury is mostly indicated at the lumbar spine (L3−L5) and corresponding intervertebral disks. Finite element analysis (FEA) is now one of the most efficient and accepted tools used to simulate these pathological conditions in computer-assisted design (CAD) models. In this study, L3−L5 spines were modeled, and FEA was performed to formulate optimal remedial measures. Three different loads (420, 490.5, and 588.6 N) based on three body weights (70, 90, and 120 kg) were applied at the top surface of the L3 vertebra, while the lower surface of the L5 vertebra remained fixed. Models of implants using stainless steel and titanium alloy (Ti6Al4V) pedicle screws and rods with three different diameters (4, 5, and 6 mm) were inserted into the spine models. The relative strengths of bone (very weak, weak, standard, strong, and very strong) were considered to determine the patient-specific effect. A total of 90 models were simulated, and von Mises stress and strain, shear stress, and strain intensity contour at the bone-implant interface were analyzed. Results of these analyses indicate that the 6-mm pedicle screw diameter is optimal for most cases. Experimental and clinical validation are needed to confirm these theoretical results.

CITADO POR
  1. Biswas Jayanta Kumar, Rana Masud, Majumder Santanu, Karmakar Santanu Kumar, Roychowdhury Amit, Effect of two-level pedicle-screw fixation with different rod materials on lumbar spine: A finite element study, Journal of Orthopaedic Science, 23, 2, 2018. Crossref

  2. Biswas Jayanta Kr., Rana Masud, Roy Sandipan, Majumder Santanu, Karmakar Santanu Kr., Roychowdhury Amit, Effect of range of motion (ROM) for pedicle-screw fixation on lumbar spine with rigid and semi-rigid rod materials: A finite element study, IOP Conference Series: Materials Science and Engineering, 402, 2018. Crossref

  3. Biswas Jayanta Kumar, Roy Sandipan, Rana Masud, Halder Subhasish, A comparison of rigid, semi-rigid and flexible spinal stabilization devices: A finite element study, Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 233, 12, 2019. Crossref

  4. BHATTACHARYA SHAMBO, ROY SANDIPAN, RANA MASUD, BANERJEE SREERUP, KARMAKAR SANTANU KUMAR, BISWAS JAYANTA KUMAR, BIOMECHANICAL PERFORMANCE OF A MODIFIED DESIGN OF DYNAMIC CERVICAL IMPLANT COMPARED TO CONVENTIONAL BALL AND SOCKET DESIGN OF AN ARTIFICIAL INTERVERTEBRAL DISC IMPLANT: A FINITE ELEMENT STUDY, Journal of Mechanics in Medicine and Biology, 19, 04, 2019. Crossref

  5. Rana Masud, Roy Sandipan, Biswas Palash, Biswas Shishir Kumar, Biswas Jayanta Kumar, Design and development of a novel expanding flexible rod device (FRD) for stability in the lumbar spine: A finite-element study, The International Journal of Artificial Organs, 43, 12, 2020. Crossref

  6. Rana Masud, Biswas Jayanta Kumar, Roy Sandipan, Biswas Palash, Karmakar Santanu Kumar, Roychowdhury Amit, Motion analysis of lumbar vertebrae for different rod materials and flexible rod device – An experimental and finite element study, Biocybernetics and Biomedical Engineering, 40, 1, 2020. Crossref

  7. Biswas Jayanta Kumar, Dey Swati, Karmakar Santanu Kumar, Roychowdhury Amit, Datta Shubhabrata, Design of Patient Specific Spinal Implant (Pedicle Screw Fixation) using FE Analysis and Soft Computing Techniques, Current Medical Imaging Formerly Current Medical Imaging Reviews, 16, 4, 2020. Crossref

  8. Dong Enchun, Shi Lei, Kang Jianfeng, Li Dichen, Liu Bin, Guo Zheng, Wang Ling, Li Xiangdong, Biomechanical characterization of vertebral body replacement in situ: Effects of different fixation strategies, Computer Methods and Programs in Biomedicine, 197, 2020. Crossref

  9. Jain Pushpdant, Khan Mohammed Rajik, Selection of suitable pedicle screw for degenerated cortical and cancellous bone of human lumbar spine: A finite element study, The International Journal of Artificial Organs, 44, 5, 2021. Crossref

  10. Biswas Jayanta Kumar, Kalita Kanak, Roychowdhury Amit, Symbolic regression metamodel-based optimal design of patient-specific spinal implant (pedicle screw fixation), Engineering with Computers, 38, 2, 2022. Crossref

  11. Rana Masud, Biswas Jayanta Kumar, Roy Sandipan, Ghosh Niloy, Bhattacharya Shambo, Karmakar Santanu Kumar, Roychowdhury Amit, Measurement of strain in the rod for lumbar pedicle screw fixation: An experimental and finite element study, Biomedical Physics & Engineering Express, 6, 6, 2020. Crossref

  12. Li Peng, Ren Bowen, Hu Kun, Yang Zongwen, Han Zhenchuan, Zhang Guifeng, Zhao Bo, A Screening Method for Dangerous Models of 3D Printed Bionic Artificial Vertebral Bodies - Finite Element Analysis, in Interdisciplinary Research for Printing and Packaging, 896, 2022. Crossref

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