Novel imaging analysis for foot and ankle deformity.

• Project/Area Number: 26462313
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Orthopaedic surgery
• Research Institution: Kyoto Prefectural University of Medicine
• Principal Investigator: Tokunaga Daisaku 京都府立医科大学, 医学(系)研究科(研究院), 准教授 (90343409)
• Co-Investigator(Kenkyū-buntansha): 生駒 和也 京都府立医科大学, 医学(系)研究科(研究院), 講師 (50516044)
• Research Collaborator: IMAI Kan ; KIDO Masamitsu ; HARA Yusuke
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 足部足関節 / バイオメカニクス / 関節病学 / 扁平足

Outline of Final Research Achievements

CT-osteoabsorptiometry (CT-OAM) was method for assessing the distribution of subchondral mineralization. Relationships between strength and subchondral bone density (SBD) of the human joint are known.
We observed that the area of maximum density of the tibia was located in the medial part in most subjects. Therefore we observed that shortest joint space was located medial sections. We believed our data shows that stress concentration was increased in area of joint space narrowing especially. CT-OAM analysis may elucidate the pathology of foot and ankle disorders.

Research Products

• [Presentation] Analysis of Mechanical Strength in Talus Using CT-osteoabsorptiometry; in vivo Study (2016)
  • Author(s): 原 佑輔
  • Organizer: Foot International 2016
  • Place of Presentation: ドイツ ベルリン
  • Year and Date: 2016-06-23
  • Int'l Joint Research
• [Presentation] CT-Osteoabsorptiometryを用いた生体健常足関節の応力分布の解析 (2015)
  • Author(s): 原 佑輔
  • Organizer: 第40回日本足の外科学会
  • Place of Presentation: ヒルトン東京ベイ
  • Year and Date: 2015-10-29
• [Presentation] Analysis of mechanical strength in talus using CT-Osteoabsorptiometry; in vivo study (2015)
  • Author(s): 原佑輔
  • Organizer: Orthopaedics Research Society 2014 annual meeting
  • Place of Presentation: MGM grand hotel
  • Year and Date: 2015-03-28 – 2015-03-31
• [Presentation] CT-Osteoabsorptiometryを用いた生体健常足関節の応力分布の解析 (2014)
  • Author(s): 原佑輔
  • Organizer: 第39回日本足の外科学会
  • Place of Presentation: 宮崎シーガイアコンベンションセンター
  • Year and Date: 2014-11-13 – 2014-11-14