Analytical modeling of the interaction of an ultrasonic wave with a rough bone-implant interface

HANDLE オープンアクセス
  • 琵琶, 志朗
    CNRS, Laboratoire Modélisation et Simulation Multi Echelle, MSME UMR 8208 CNRS
  • Nguyen, Vu-Hieu
    Université Paris-Est, Laboratoire Modélisation et Simulation Multi Echelle, MSME UMR 8208 CNRS
  • Biwa, Shiro
    Department of Aeronautics and Astronautics, Graduate School of Engineering, Kyoto University
  • Haïat, Guillaume
    CNRS, Laboratoire Modélisation et Simulation Multi Echelle, MSME UMR 8208 CNRS

抄録

Quantitative ultrasound can be used to characterize the evolution of the bone-implant interface (BII), which is a complex system due to the implant surface roughness and to partial contact between bone and the implant. The determination of the constitutive law of the BII would be of interest in the context of implant acoustical modeling in order to take into account the imperfect characteristics of the BII. The aim of the present study is to propose an analytical effective model describing the interaction between an ultrasonic wave and a rough BII. To do so, a spring model was considered to determine the equivalent stiffness K of the BII. The stiffness contributions related (i) to the partial contact between the bone and the implant and (ii) to the presence of soft tissues at the BII during the process of osseointegration were assessed independently. K was found to be comprised between 10¹³ and 10¹⁷ N/m³ depending on the roughness and osseointegration of the BII. Analytical values of the reflection and transmission coefficients at the BII were derived from values of K. A good agreement with numerical results obtained through finite element simulation was obtained. This model may be used for future finite element bone-implant models to replace the BII conditions.

収録刊行物

詳細情報 詳細情報について

  • CRID
    1050285700268510208
  • NII論文ID
    120006882452
  • ISSN
    0041624X
    18749968
  • HANDLE
    2433/254194
  • 本文言語コード
    en
  • 資料種別
    journal article
  • データソース種別
    • IRDB
    • CiNii Articles

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