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Total Knee Arthroplasty based on Joint Internal Pressure

Research Project

Project/Area Number 16K10873
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Orthopaedic surgery
Research InstitutionKeio University

Principal Investigator

HARATO KENGO  慶應義塾大学, 医学部(信濃町), 講師 (00338089)

Co-Investigator(Kenkyū-buntansha) 名倉 武雄  慶應義塾大学, 医学部(信濃町), 講師 (90306746)
多田 充徳  国立研究開発法人産業技術総合研究所, 情報・人間工学領域, 研究グループ長 (70392628)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords人工膝関節置換術 / 圧センサー / 関節圧センサー / 膝蓋大腿関節圧 / 医療・福祉 / 外科 / トランスレーショナルリサーチ
Outline of Final Research Achievements

A femoral component with a 6-axis pressure sensor and a mobile patella component were created. The patellofemoral joint pressure was measured using the custom-made component while changing the thickness of the patella to -2, 0, +2, +4 mm.
The knee flexion angles were measured at 90 degrees, 100 degrees, and 110 degrees. A thickness of 0 mm was used as a reference value for comparison. The patellofemoral joint pressure increased as the thickness of the patella increased (-2 mm: 80.0%, 0 mm: 100%, +2 mm: 114.8%, +4 mm: 153.8%). Based on the knee flexion angle of 90 degrees, the patellofemoral joint pressure increased 30.5% at 100 degrees and 73.8% at 110 degrees.

Academic Significance and Societal Importance of the Research Achievements

人工膝関節置換術後の関節圧は正常の膝関節圧と比較すると有意に高くなることが知られており、過度な関節圧が術後成績を悪化させる可能性が示唆されている。しかし、人工膝関節置換術中に詳細な関節圧を測定する機器は存在しない。
本研究から術中に膝蓋大腿関節圧を測定することが可能となり、膝蓋骨の厚みや膝関節の屈曲角度が強く影響することが判明した。これは将来的に人工膝関節置換術の患者満足度向上に寄与すると考えられる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (5 results)

All 2017 2016

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (4 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Influence of Total Knee Arthroplasty on Patellar Kinematics and Patellofemoral Pressure2017

    • Author(s)
      Hidenori Tanikawa, Mitsunori Tada, Kengo Harato,Kazunari Okuma, Takeo Nagura
    • Journal Title

      Journal of Arthroplasty

      Volume: 32 Issue: 1 Pages: 280-285

    • DOI

      10.1016/j.arth.2016.06.044

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Influence of Posterior Cruciate Ligament Resection on Patellar Biomechanics in Condylar-Stabilizing Total Knee Arthroplasty2017

    • Author(s)
      Hidenori Tanikawa, Mitsunori Tada, Kengo Harato, Ryo Ogawa, So Nomoto, Takeo Nagura
    • Organizer
      63rd Orthopaedic Research Society
    • Place of Presentation
      San Diego, CA, USA
    • Year and Date
      2017-03-19
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Influence of Posterior Cruciate Ligament Resection on Patellar Biomechanics in2017

    • Author(s)
      Hidenori Tanikawa, Mitsunori Tada, Kengo Harato, Ryo Ogawa, So
    • Organizer
      63rd Orthopaedic Research Society(
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 人工膝関節置換術が膝蓋大腿関節圧および膝蓋骨キネマティクスに与える影響2016

    • Author(s)
      谷川英徳, 多田充徳, 原藤健吾, 名倉武雄
    • Organizer
      第89回日本整形外科学会学術集会
    • Place of Presentation
      パシフィコ横浜(神奈川県横浜市)
    • Year and Date
      2016-05-12
    • Related Report
      2016 Research-status Report
  • [Presentation] Patellar Kinematics and Patellofemoral Pressure in Total Knee Arthroplasty2016

    • Author(s)
      Hidenori Tanikawa, Mitsunori Tada, Kengo Harato,Kazunari Okuma, Takeo Nagura
    • Organizer
      58th Nordic Orthopaedic Federation
    • Place of Presentation
      Linkoping, Sweden
    • Year and Date
      2016-04-27
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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