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Novel fracture treatment by prevention of bacterial adherence and biofilm formation

Research Project

Project/Area Number 18K09094
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56020:Orthopedics-related
Research InstitutionTeikyo University (2019-2020)
The University of Tokyo (2018)

Principal Investigator

Hidaka Ryo  帝京大学, 医学部, 助手 (70761451)

Co-Investigator(Kenkyū-buntansha) 田中 栄  東京大学, 医学部附属病院, 教授 (50282661)
石原 一彦  東京大学, 大学院工学系研究科(工学部), 教授 (90193341)
茂呂 徹  東京大学, 医学部附属病院, 特任准教授 (20302698)
高取 吉雄  東京大学, 医学部附属病院, 客員研究員 (40179461)
田中 健之  東京大学, 医学部附属病院, 助教 (00583121)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords医療・福祉 / 骨折 / 感染 / 偽関節 / 遷延治癒
Outline of Final Research Achievements

Initial bacterial adhesion to medical devices for the fracture treatment and subsequent biofilm formation are known as the leading causes of surgical siteinfection (SSI). In this study, we have proposed novel method for a highly hydrophilic, antibiofouling metal surface of the medical devices for the fracture treatment by coating with 2-methacryloyloxyethyl phosphorylcholine (MPC). In addition we have successfully demonstrated that MPC coated metal surface suppress adhesion and biofilm formation of methicillin-resistant Staphylococcus aureus, using in vitro/vivo infection model.From the result of present study, we concluded that the MPC-coating will bring novel medical device in the field of fracture treatment.

Academic Significance and Societal Importance of the Research Achievements

骨折手術は、大別して、金属製のプレート・スクリューによる内固定と、金属製のワイヤーやピンと創外固定器を組み合わせた外固定によって行われている。エビデンスに基づいた治療指針の確立、手術方法、医療機器等の進歩により、多くの症例で良好な臨床成績が得られるようになっている一方で、感染と、続発する癒合不全(遷延治癒・偽関節)は深刻な合併症である。本研究成果により、これらの合併症を阻止し骨折の治療成績を向上させることが可能となり、患者の日常ADL・QOLの改善はもちろん、特に高齢者においては寝たきり防止・自立の保持による認知症や内臓疾患の予防、超高齢社会における労働力の確保や医療費の削減も期待できる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (1 results)

All 2020

All Journal Article (1 results) (of which Peer Reviewed: 1 results)

  • [Journal Article] 2-Methacryloyloxyethyl Phosphorylcholine Polymer Coating Inhibits Bacterial Adhesion and Biofilm Formation on a Suture: An In Vitro and In Vivo Study2020

    • Author(s)
      Kaneko Taizo、Saito Taku、Shobuike Takeo、Miyamoto Hiroshi、Matsuda Junpei、Fukazawa Kyoko、Ishihara Kazuhiko、Tanaka Sakae、Moro Toru
    • Journal Title

      BioMed Research International

      Volume: 2020 Issue: 1 Pages: 1-8

    • DOI

      10.1155/2020/5639651

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

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