Finite element analysis of a stemmed hip prosthesis to reduce stress shielding in the proximal femur

Oliver Bliss; JG Swadener; Gillian Pierce; Iham Zidane

doi:10.15282/jmes.17.1.2023.5.0739

Authors

Oliver Bliss School of Engineering and Applied Science, Aston University, Aston Triangle, Birmingham, B4 7ET, U.K.
JG Swadener School of Engineering and Applied Science, Aston University, Aston Triangle, Birmingham, B4 7ET, U.K.
Gillian Pierce School of Engineering and Applied Science, Aston University, Aston Triangle, Birmingham, B4 7ET, U.K.
Iham Zidane Mechanical Engineering Department, College of Engineering and Technology, Arab Academy of Science, Technology and Maritime Transport (AASTMT), 1029 Abu Kir, Alexandria – Egypt

DOI:

https://doi.org/10.15282/jmes.17.1.2023.5.0739

Keywords:

Total Hip Replacement, Finite Element Analysis, Biomedical, Prosthesis Stem, Proximal Femur

Abstract

A finite element analysis (FEA) was performed on four prosthesis designs with different internal structures within identical prosthetic stem geometry. A novel hexagonal structure akin to one of the strongest structures in nature is used internally in the stem. The hip implant designs were then analyzed for an applied force of 3227 N. This force was selected because a typical gait cycle generates forces up to 3.87 times the body weight in the hip joint. The FEA results were compared for various stem designs with rectangular cross-sections. The design objective for a hip stem is to have a low stiffness and stress shielding together with a very high fatigue life. The stress shielding reduction of the prothesis was measured by observing the change in stress distribution in a FE femur model before and after implant. Stress shielding was quantified volumetrically, and the surface stresses of the femur were considered to appraise any increased risk of periprosthetic fracture due to increased bone stress. Subsequently, the stems that had the lowest stress shielding models were then optimized. Results showed a reduction of stiffness of 18%, and a reduction in stress shielding of 30% compared to a solid stem.

References

S. B. Mirza, D.G. Dunlop, S. S. Panesar, S. G. Naqvi, S. Gangoo, and S. Salih, "Basic science considerations in primary total hipreplacement arthroplasty,"The Open Orthopaedics Journal, vol. 4, pp. 169-180, 2010.

M. Lerch, et al., "Finite element model of a novel short stemmed total hip arthroplasty implant developed from cross sectional CT scans,"Technology of Health Care, vol. 21, pp. 493-500, 2013.

B. A. Behrens, I. Nolte, P. Wefstaedt, C. Stuckenborg-Colsman, and A. Bougeucha, "Numerical investigations on the strain-adaptive bone remodelling in the periprosthetic femur: Influence of the boundary conditions,"BiomedicalEngineering Online,vol. 8, p. 7, 2009.

J. Kerner et al.., "Correlation between pre-operative periprosthetic bone density and post-operative bone loss in THA can be explained strain-adaptive remodelling,"Journal of Biomechanics, vol. 32, pp. 695-703,1999.

P. Beulah, S. Sivarasu, and L. Mathew, "Design optimization of skeletal hip implant cross-sections using finite element analysis," Journal of Long-Term Effects of Medical Implants, vol 19, pp. 271-278, 2009.

S. Arabnejad, B. Johnston, M. Tanzer, and D. Pasini, "Fully porous 3D printed titanium femoral stem to reduce stress-shielding following total hip arthroplasty,"Journal of Orthopaedic Research, vol. 35, pp. 1774-1783, 2017.

C. Cauoette, L.H. Yahia, M. N. Bureau, "Reduced stress shielding with limited micromotions using a carbon fibre composite biomimetic hip stem: a finite element model,"Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine,vol. 225, no. 9, pp. 907-919, 2011.

M. Fraldi, L. Esposito, G. Perrella, A. Cutolo, and S. C. Cowin, "Topological optimization in hip prosthesis design,"Biomechincal Modelling and Mechanobiology, vol. 9, no. 4, pp. 389-402, 2010.

S. K. Singh, P. Tandon, "Heterogeneous modeling-based prosthesisdesign with porosity and material variation,"Journal of the Mechanical Behavior of Biomedical Materials, vol. 87, pp. 124-131, 2018.

Y. He, D. Burkhalter, D. Durocher, J. M. Gilbert, "Solid-lattice hip prosthesis design: Applying topology and lattice optimization to reduce stress shielding from hip implants,"in Proceedings of the 2018 Design of Medical Devices Conference, DMD2018-6804, V001T03A001, 2018.

B. Jette, V. Brailovski, M. Durmas, C. Simoneau, P. Terriault, "Femoral stem incorporating a diamond cubic lattice structure: Design, manufacture and testing,"Journal of the Mechanical Behavior of Biomedical Materials, vol. 77, pp. 58-72, 2017.

A. Ait Moussa, J. Fischer, R. Yadav, and M. Khandaker, "Minimizing stress shielding and cement damage in cemented Femoral component of a hip prosthesis through computational design optimization,"Advances in Orthopedics, vol. 2017, p. 8437956, 2017.

P. C. Noble, J.W. Alexander, L. J. Lindahl, D. T. Yew, W. M. Granberry, and H. S. Tullos, "The anatomic basis of Femoral component design,"Clinical Orthopaedics, Related Research, vol. 235, pp. 148-165, 1988.

K. A. Mann, M.A. Miller, P. A. Costa, A. Race, and T. H. Izant, "Interface micromotion of uncemented femoral components from postmortem retrieved total hip replacements,"Journal of Arthoplasty, vol. 27, no. 2, pp. 65-75, 2012.

J. T. Kim, J. J. Yoo, "Implant design in cementless hip arthroplasty,"Hip & Pelvis, vol. 28, no. 2, pp. 65-75, 2016.

H. Bougherara, M. Bureau, M. Campbell, A. Vadean, and L. H. Yahia, "Design of a biomimetic polymer-composite hip prosthesis," Journal of Biomedical Materials Research A,vol. 82A, pp. 27-40, 2007.

G. Tsikandylakis, M. Mohaddes, P. Cnudde, A. Eskelinen, J. Karrholm, and O. Rolfson, "Headsize in primary total hip arthroplasty," EFORT Open Review, vol. 3, no. 5, p. 225-231, 2018.

M. Choroszyński, M.R. Choroszynski, and S. J. Skrzypek, "Biomaterials for hip implants –important considerations relating to the choice of materials,"Bio-Algorithms and Med-Systems, vol. 13, no. 3, pp. 133-145, 2017.

British Standards Institute., "Determination of endurance properties and performance of stemmed femoral components,"BS ISO 7206-4:2010+A1:2016. Part 4. BSI, 2016.

A. Ebrahinzadeh and N. Jamshidi, "Reducing stress shielding and weight as well as helping to revascularization of the Femur by applying honeycomb holes in hip prosthesi,".Journal of Mechanics in Medicine and Biology, vol. 19, no. 06, p. 1950051, 2019.

M. Mahmoudi, M.R. Dorali, M. H. Beni, and H. Mahbadi, "Bio-CAD modelling of femoral bones with dual X-ray absorptiometry and spiral CT-scan technique,"in 26th Annual International Conference of Iranian Society of Mechanical Engineers. 2018. Semnan University, Semnan, Iran 24-26 April 2018.

J. Y. Rho, R.B. Ashman, and C.H. Turner, "Young's modulus of trabecular and cortical bone material: Ultrasonic and micro tensile measurements,"Journal of Biomechanics, vol. 26, no. 2, pp. 111-119, 1993.

H. H. Bayraktar, E.F. Morgan, G. L Niebur, G. E. Morris, E. K. Wong, and T. M. Keaveny, "Comparison of the elastic and yield properties of human femoral trabecular and cortical bone tissue,"Journal of Biomechanics,vol. 37, no. 1, pp. 27-35, 2004.