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Development of laser resonance frequency analysis of pedicle screw stability

Research Project

Project/Area Number 19K04286
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 20010:Mechanics and mechatronics-related
Research InstitutionNational Institutes for Quantum Science and Technology

Principal Investigator

Nishikino Masaharu  国立研究開発法人量子科学技術研究開発機構, 量子ビーム科学部門, 研究統括 (70370450)

Co-Investigator(Kenkyū-buntansha) 長谷川 登  国立研究開発法人量子科学技術研究開発機構, 関西光科学研究所 光量子科学研究部, 主幹研究員 (50360409)
三上 勝大  近畿大学, 生物理工学部, 講師 (20722763)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywordsレーザー / 誘起振動数 / 整形外科 / インプラント / ネジ / 誘起振動波 / レーザー計測 / アブレーション / 固有振動 / 熱弾性波 / 塑性変形 / レーザー共鳴周波数解析 / 設置強度診断 / 有限要素法
Outline of Research at the Start

高速・遠隔・定量評価が可能なレーザー共鳴周波数解析を応用し、レーザーを用いた新しい計測技術を開発し、手術中にも使用可能なスクリューの設置強度診断手法の確立を目指す。スクリューを土台 (模擬骨) に設置した時の埋入トルクで評価される機械強度がレーザーで誘起される振動周波数と相関関係について設置強度を摩擦係数で定義することで、レーザー共鳴周波数解析による設置強度の計測原理を確立し、有限要素法を用いた振動解析によりスクリューの種類に依らない設置強度予測の簡易解析モデルの構築を目指す。

Outline of Final Research Achievements

In order to develop a laser resonance frequency analysis (RFA) system involving a laser system to quantitatively diagnose the strength of placement in bone during surgery, the relationship between bone and implant friction was investigated for vibrations induced by laser irradiation. Based on the results obtained, a simplified model using the finite element method was examined. However, it was found that variations in the setting parameters of the foundation had a large impact on the results of the natural vibration analysis, and that there was a large variation in the construction of the simplified model and in the estimation of the installation strength by the model. Therefore, machine learning was used to extract the vibration parameters necessary to estimate the installation strength.

Academic Significance and Societal Importance of the Research Achievements

整形外科インプラントの骨への設置強度は、術後早期の緩み、逸脱である骨癒合不全に直結するため重要なパラメータである。しかし、この設置強度は研究室レベルにおいて計測可能な埋入時のトルク計測などの機械強度で定義され、評価されている。我々は、レーザー光をインプラントに照射することで誘起される振動に着目すると同時に、インプラントの埋入トルクを摩擦と軸力に分離し、レーザー計測結果の学術的な解釈を試みた。また、術中活用可能な設置強度推定を検討し、骨癒合不全の症例抑制に向けた開発を推進した。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (17 results)

All 2022 2021 2020

All Journal Article (5 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (11 results) (of which Int'l Joint Research: 4 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Machine Learning-Based Diagnosis in Laser Resonance Frequency Analysis for Implant Stability of Orthopedic Pedicle Screws2021

    • Author(s)
      K. Mikami, M. Nemoto, T. Nagura, M. Nakamura, M. Matsumoto, and D. Nakashima
    • Journal Title

      Sensors

      Volume: 21 Issue: 22 Pages: 7553-7553

    • DOI

      10.3390/s21227553

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Highly Sensitive Low-Energy Laser Sensing Based on Sweep Pulse Excitation for Bolt Loosening Diagnosis,2021

    • Author(s)
      K. Mikami, Y. Zhao, M. Morita, T. Sakamoto, H. Nishikawa
    • Journal Title

      Journal of Nondestructive Evaluation

      Volume: 40 Issue: 1 Pages: 1-9

    • DOI

      10.1007/s10921-020-00746-6

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Laser resonance frequency analysis of pedicle screw stability: A cadaveric model bone study2021

    • Author(s)
      Daisuke Nakashima, Katsuhiro Mikami, Shunsuke Kikuchi, Masaharu Nishikino, Toshiyuki Kitamura, Noboru Hasegawa, Morio Matsumoto, Masaya Nakamura, Takeo Nagura
    • Journal Title

      Journal of Orthopaedic Research

      Volume: 2021 Issue: 11 Pages: 1-11

    • DOI

      10.1002/jor.24983

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of laser-induced vibration on concrete surface toward highly efficient laser remote sensing2020

    • Author(s)
      Katsuhiro Mikami, Noboru Hasegawa, Toshiyuki Kitamura, Hajime Okada, Shuji Kondo, Masaharu Nishikino
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 59 Issue: 7 Pages: 1-9

    • DOI

      10.35848/1347-4065/ab9849

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stability diagnosis of orthopedic implants based on resonance frequency analysis with fiber transmission of nanosecond laser pulse and acceleration sensor2020

    • Author(s)
      Mikami Katsuhiro、Nakashima Daisuke、Kikuchi Shunsuke、Kitamura Toshiyuki、Hasegawa Noboru、Nagura Takeo、Nishikino Masaharu
    • Journal Title

      PROCEEDINGS OF SPIE

      Volume: 11233 Pages: 23-23

    • DOI

      10.1117/12.2544793

    • Related Report
      2019 Research-status Report
  • [Presentation] レーザー誘起振動波診断における機械学習を用いた高精度化2022

    • Author(s)
      三上勝大、根本充貴、石野田明弘、名倉武雄、中島大輔
    • Organizer
      レーザー学会学術講演会第42回年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 整形外科インプラント設置強度の機械学習によるレーザー診断の高度化2022

    • Author(s)
      三上勝大、根本充貴、石野田明弘、名倉武雄、中島大輔
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Influence of friction in bolt loosening inspection based on laser hammering method2021

    • Author(s)
      Y. Okamoto, K. Mikami, N. Sudo, N. Hasegawa, and M. Nishikino
    • Organizer
      Laser Solution for Space and the Earth 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Laser Hammering Method for Initial Stability Diagnosis of Pedicle Screw in Human Body2021

    • Author(s)
      K. Mikami, D. Nakashima, N. Hasegawa, T. Kitamura, M. Nishikino and T. Nagura
    • Organizer
      Laser Solution for Space and the Earth 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 掃引加振法によるレーザー誘起振動波診断の低エネルギー化実証2021

    • Author(s)
      数藤菜摘, 三上勝大
    • Organizer
      レーザー学会学術講演会第41回年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] レーザー照射による振動工学パラメータ計測手法の検討2021

    • Author(s)
      岡本佑夏, 三上勝大
    • Organizer
      レーザー学会学術講演会第41回年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 低エネルギー化を目指したレーザー誘起振動波診断の最適化2021

    • Author(s)
      数藤菜摘, 三上勝大, 岡本佑夏
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] レーザー共鳴周波数解析による摩擦計測手法の検討2021

    • Author(s)
      岡本佑夏, 三上勝大
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 超低エネルギーレーザーによるインプラント設置強度診断2020

    • Author(s)
      三上勝大, 西川博昭
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Demonstration of High-Speed Laser Hammering System for the Lining Concrete Inspection2020

    • Author(s)
      Noboru Hasegawa, Masaharu Nishikino, Hajime Okada, Shuji Kondo, Toshiyuki Kitamura, Shigeru Kogure, Masamichi Abe, Kazuhisa Masuzoe
    • Organizer
      World Tunnel Congress 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Stability diagnosis of orthopedic implants based on resonance frequency analysis with fiber transmission of nanosecond laser pulse and acceleration sensor2020

    • Author(s)
      Mikami Katsuhiro、Nakashima Daisuke、Kikuchi Shunsuke、Kitamura Toshiyuki、Hasegawa Noboru、Nagura Takeo、Nishikino Masaharu
    • Organizer
      SPIE Photonics West - BiOS
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] 加振装置、検査システム、及び加振方法2021

    • Inventor(s)
      錦野将元、北村俊幸
    • Industrial Property Rights Holder
      量子科学技術研究開発機構
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-163076
    • Filing Date
      2021
    • Related Report
      2021 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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