Shape memory alloy smart knee spacer to enhance knee functionality: Model design and finite element analysis

Arvind Gautam, A. Bhargavi Rani, Miguel A. Callejas, Swati Ghosh Acharyya, Amit Acharyya, Dwaipayan Biswas, Vasundhra Bhandari, Paresh Sharma, Ganesh R. Naik

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

In this paper we introduce Shape Memory Alloy (SMA) for designing the tibial part of Total Knee Arthroplasty (TKA) by exploiting the shape-memory and pseudo-elasticity property of the SMA (e.g. NiTi). This would eliminate the drawbacks of the state-of-the art PMMA based knee-spacer including fracture, sustainability, dislocation, tilting, translation and subluxation for tackling the Osteoarthritis especially for the aged people of 45-plus or the athletes. In this paper a Computer Aided Design (CAD) model using SolidWorks for the knee-spacer is presented based on the proposed SMA adopting the state-of-the art industry-standard geometry that is used in the PMMA based spacer design. Subsequently Ansys based Finite Element Analysis is carried out to measure and compare the performance between the proposed SMA based model with the state-of-the art PMMA ones. 81% more bending is noticed in the PMMA based spacer compared to the proposed SMA that would eventually cause fracture and tilting or translation of spacer. Permanent shape deformation of approximately 58.75% in PMMA based spacer is observed compared to recoverable 11% deformation in SMA when same load is applied on both separately.

Original languageEnglish
Title of host publication2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
Place of PublicationFlorida
PublisherIEEE
Pages6046-6049
Number of pages4
ISBN (Electronic)9781457702204
ISBN (Print)9781457702198
DOIs
Publication statusPublished - 18 Oct 2016
Externally publishedYes
Event38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016 - Orlando, United States
Duration: 16 Aug 201620 Aug 2016

Publication series

NameProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
Volume2016-October
ISSN (Print)1557-170X

Conference

Conference38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016
CountryUnited States
CityOrlando
Period16/08/1620/08/16

Keywords

  • CAD
  • Knee Osteoarthritis
  • PMMA
  • SMA
  • TKA

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  • Cite this

    Gautam, A., Rani, A. B., Callejas, M. A., Acharyya, S. G., Acharyya, A., Biswas, D., Bhandari, V., Sharma, P., & Naik, G. R. (2016). Shape memory alloy smart knee spacer to enhance knee functionality: Model design and finite element analysis. In 2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (pp. 6046-6049). (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS; Vol. 2016-October). IEEE. https://doi.org/10.1109/EMBC.2016.7592107