Mechanics of Total Ankle Replacement During Flexion in Relation to Geometrical Design: a Finite Element Study

 
 
 
  • Abstract
  • Keywords
  • References
  • PDF
  • Abstract


    Total ankle replacement (TAR) procedure is carried out to reduce the pain due to arthritis and trauma in patients. The  failure of TAR implants occurs through various wear mechanisms in the polyethylene due to high ankle load, leads to instability as well as loosening problem. The objective of this project is to assess the performance of Salto Talaris (TAR) implants before and after design modification. In the present study, the computational model of Salto Talaris and the modified design was developed using CATIA V5R20 while the finite element analysis (FEA) was performed in ANSYS V18. The results have shown that the maximum von Mises stress induced in the polyethylene insert for Salto Talaris and the new design were 13.9 MPa and 8.7 MPa, respectively, with applied 880 N of axial ankle load. The modified version exhibited better performance due to elimination of edge loading with good contact area. Design modification is essential to lower the stress induced at PE insert, hence reduce the failure of TAR prosthesis.

     

     


  • Keywords


    Total ankle replacement; polyethylene insert; finite element analysis; von Mises stress

  • References


      [1] D. Sofia and D. O. Salgado, “Biomechanics of the Total Ankle Arthroplasty : Stress Analysis and Bone Remodeling Biomedical Engineering Examination Committee,” no. June, pp. 1–134, 2013.

      [2] A. Roselló Añón, I. Martinez Garrido, J. Cervera Deval, D. Herrero Mediavilla, M. Sánchez González, and V. Vicent Carsí, “Total ankle replacement in patients with end-stage ankle osteoarthritis: Clinical results and kinetic gait analysis,” Foot Ankle Surg., vol. 20, no. 3, pp. 195–200, 2014.

      [3] M. Ozen, O. Sayman, and H. Havitcioglu, “Modeling and stress analyses of a normal foot-ankle and a prosthetic foot-ankle complex,” Acta Bioeng. Biomech., vol. 15, no. 3, pp. 19–27, 2013.

      [4] A. Terrier, C. S. Fernandes, M. Guillemin, and X. Crevoisier, “Fixed and mobile-bearing total ankle prostheses: Effect on tibial bone strain,” Clin. Biomech., vol. 48, no. July, pp. 57–62, 2017.

      [5] J. M. Michael, A. Golshani, S. Gargac, and T. Goswami, “Biomechanics of the ankle joint and clinical outcomes of total ankle replacement,” J. Mech. Behav. Biomed. Mater., vol. 1, no. 4, pp. 276–294, 2008.

      [6] M. S.K., D. B.G., J. J.R., S. M.P., C. M.M., and B. W.S., “The salto talaris total ankle arthroplasty system: A review and report of early results,” Semin. Arthroplasty, vol. 21, no. 4, pp. 282–287, 2010.

      [7] N. E. Gougoulias, A. Khanna, and N. Maffulli, “History and evolution in total ankle arthroplasty,” British Medical Bulletin, vol. 89, no. 1. pp. 111–151, 2009.

      [8] B. Jay Elliot, D. Gundapaneni, and T. Goswami, “Finite element analysis of stress and wear characterization in total ankle replacements,” J. Mech. Behav. Biomed. Mater., vol. 34, pp. 134–115, 2014.

      [9] M. W. Whittle, “Whittle’s Gait Analysis,” Elsevier. p. 192, 2012.

      [10] R. S. Sopher, A. A. Amis, J. D. Calder, and J. R. T. Jeffers, “Total ankle replacement design and positioning affect implant-bone micromotion and bone strains,” Med. Eng. Phys., vol. 42, pp. 80–90, 2017.

      [11] J. Baena, J. Wu, and Z. Peng, “Wear Performance of UHMWPE and Reinforced UHMWPE Composites in Arthroplasty Applications: A Review,” Lubricants, vol. 3, no. 2, pp. 413–436, 2015.

      [12] M. Ogawa, Y. Tohma, H. Ohgushi, Y. Takakura, and Y. Tanaka, “Early fixation of cobalt-chromium based alloy surgical implants to bone using a tissue-engineering approach,” Int. J. Mol. Sci., vol. 13, no. 5, pp. 5528–5541, 2012.

      [13] F. Cenni et al., “Position of the prosthesis components in total ankle replacement and the effect on motion at the replaced joint,” Int. Orthop., vol. 36, no. 3, pp. 571–578, 2012.

      [14] M.S. Kuster, G.A. Wood, G.W. Stachowiak, A. Gachter. , "Joint load considerations in total knee replacement, " J. Bone Joint Surg. Br. 79(1), pp. 109-113, 1997.

      [15] Dai, S., Carroll, D. D., Watson, K. B., Paul, P., Carlson, S. A., & Fulton, J. E.. Participation in Types of Physical Activities Among US Adults—National Health and Nutrition Examination Survey 1999–2006. Journal of Physical Activity & Health, 12(0 1), S128–S140. http://doi.org/10.1123/jpah.2015-0038, 2015.


 

View

Download

Article ID: 22140
 
DOI: 10.14419/ijet.v7i4.26.22140




Copyright © 2012-2015 Science Publishing Corporation Inc. All rights reserved.