X-ray image review of the bone remodeling around an osseointegrated trans-femoral implant and a finite element simulation case study

Annals of Biomedical Engineering
Wei Xu, Kingsley Robinson

Abstract

The insertion of an implant into a bone leads to stress/strain redistribution, hence bone remodeling occurs adjacent to the implant. The study of the bone remodeling around the osseointegration implants can predict the long-term clinical success of the implant. The clinical medial-lateral X-rays of 11 patients were reviewed. To eliminate geometrical distortion of different X-rays, they were converted into a digital format and geometrical correction was carried out. Furthermore, the finite element (FE) method was used to investigate how the bone remodeling was affected by the stress/strain distribution in the femur. The review of clinical X-rays showed cortical bone growth around the proximal end of the implant and absorbtion at the distal end of the femur. The FE simulation revealed the stress/strain distribution in the femur of a selected patient. This provided a biomechanical interpretation of the bone remodeling. The existing bone remodeling theories such as minimal strain and strain rate theories were unable to offer satisfactory explanation for the cortical bone growth at the implant side of the proximal femur, where the stress/strain level was much lower than the one in the intact side of the femur. The study established ...Continue Reading

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Citations

Mar 24, 2010·Annals of Biomedical Engineering·P K TomaszewskiG J Verkerke
Mar 21, 2013·Journal of the Mechanical Behavior of Biomedical Materials·P K TomaszewskiN Verdonschot
Oct 4, 2012·Journal of the Mechanical Behavior of Biomedical Materials·P K TomaszewskiG J Verkerke
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Apr 18, 2012·Acta Orthopaedica. Supplementum·Tina Strømdal Wik
Jun 25, 2016·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Patrik StenlundAnders Palmquist
Jul 29, 2016·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Lisanne Maria HaketHenk van de Meent
Jan 20, 2018·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Piotr Prochor, Eugeniusz Sajewicz
Sep 28, 2017·Computer Methods in Biomechanics and Biomedical Engineering·Elder Michael Andrango CastroZdenek Horak
Jun 13, 2018·JBI Database of Systematic Reviews and Implementation Reports·Shanthan PatherLaurent Frossard
Aug 17, 2018·Prosthetics and Orthotics International·Douglas John MatthewsDavid Ward
May 6, 2020·Journal of Orthopaedic Surgery and Research·Marcus ÖrgelHorst-Heinrich Aschoff
Mar 20, 2021·Journal of the Mechanical Behavior of Biomedical Materials·Armin Omidvar GhazianiSara Kowsar
Sep 27, 2020·Medical Engineering & Physics·Wesley NiswanderAndrew P Baumann

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