Mechanics of Total Ankle Replacement During Flexion in Relation to Geometrical Design: a Finite Element Study
Keywords:Total ankle replacement, polyethylene insert, finite element analysis, von Mises stress
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.
 D. Sofia and D. O. Salgado, â€œBiomechanics of the Total Ankle Arthroplasty : Stress Analysis and Bone Remodeling Biomedical Engineering Examination Committee,â€ no. June, pp. 1â€“134, 2013.
 A. RosellÃ³ AÃ±Ã³n, I. Martinez Garrido, J. Cervera Deval, D. Herrero Mediavilla, M. SÃ¡nchez GonzÃ¡lez, and V. Vicent CarsÃ, â€œTotal ankle replacement in patients with end-stage ankle osteoarthritis: Clinical results and kinetic gait analysis,â€ Foot Ankle Surg., vol. 20, no. 3, pp. 195â€“200, 2014.
 M. Ozen, O. Sayman, and H. Havitcioglu, â€œModeling and stress analyses of a normal foot-ankle and a prosthetic foot-ankle complex,â€ Acta Bioeng. Biomech., vol. 15, no. 3, pp. 19â€“27, 2013.
 A. Terrier, C. S. Fernandes, M. Guillemin, and X. Crevoisier, â€œFixed and mobile-bearing total ankle prostheses: Effect on tibial bone strain,â€ Clin. Biomech., vol. 48, no. July, pp. 57â€“62, 2017.
 J. M. Michael, A. Golshani, S. Gargac, and T. Goswami, â€œBiomechanics of the ankle joint and clinical outcomes of total ankle replacement,â€ J. Mech. Behav. Biomed. Mater., vol. 1, no. 4, pp. 276â€“294, 2008.
 M. S.K., D. B.G., J. J.R., S. M.P., C. M.M., and B. W.S., â€œThe salto talaris total ankle arthroplasty system: A review and report of early results,â€ Semin. Arthroplasty, vol. 21, no. 4, pp. 282â€“287, 2010.
 N. E. Gougoulias, A. Khanna, and N. Maffulli, â€œHistory and evolution in total ankle arthroplasty,â€ British Medical Bulletin, vol. 89, no. 1. pp. 111â€“151, 2009.
 B. Jay Elliot, D. Gundapaneni, and T. Goswami, â€œFinite element analysis of stress and wear characterization in total ankle replacements,â€ J. Mech. Behav. Biomed. Mater., vol. 34, pp. 134â€“115, 2014.
 M. W. Whittle, â€œWhittleâ€™s Gait Analysis,â€ Elsevier. p. 192, 2012.
 R. S. Sopher, A. A. Amis, J. D. Calder, and J. R. T. Jeffers, â€œTotal ankle replacement design and positioning affect implant-bone micromotion and bone strains,â€ Med. Eng. Phys., vol. 42, pp. 80â€“90, 2017.
 J. Baena, J. Wu, and Z. Peng, â€œWear Performance of UHMWPE and Reinforced UHMWPE Composites in Arthroplasty Applications: A Review,â€ Lubricants, vol. 3, no. 2, pp. 413â€“436, 2015.
 M. Ogawa, Y. Tohma, H. Ohgushi, Y. Takakura, and Y. Tanaka, â€œEarly fixation of cobalt-chromium based alloy surgical implants to bone using a tissue-engineering approach,â€ Int. J. Mol. Sci., vol. 13, no. 5, pp. 5528â€“5541, 2012.
 F. Cenni et al., â€œPosition of the prosthesis components in total ankle replacement and the effect on motion at the replaced joint,â€ Int. Orthop., vol. 36, no. 3, pp. 571â€“578, 2012.
 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.
 Dai, S., Carroll, D. D., Watson, K. B., Paul, P., Carlson, S. A., & Fulton, J. E.. Participation in Types of Physical Activities Among US Adultsâ€”National Health and Nutrition Examination Survey 1999â€“2006. Journal of Physical Activity & Health, 12(0 1), S128â€“S140. http://doi.org/10.1123/jpah.2015-0038, 2015.
View Full Article:
How to Cite
LicenseAuthors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under aÂ Creative Commons Attribution Licensethat allows others to share the work with an acknowledgement of the work''s authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal''s published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (SeeÂ The Effect of Open Access).