In-vivo Kinematics after Total Knee Arthroplasty and Morphological Assessment of Japanese knee

2014 Fiscal Year Final Research Report

• Project/Area Number: 24592226
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Orthopaedic surgery
• Research Institution: Tokyo Medical and Dental University
• Principal Investigator: SEKIYA Ichiro 東京医科歯科大学, 再生医療研究センター, 教授 (10345291)
• Co-Investigator(Kenkyū-buntansha): MUNETA Takeshi 東京医科歯科大学, 大学院医歯学総合研究科, 教授 (50190864) ; WATANABE Toshifumi 東京医科歯科大学, 大学院医歯学総合研究科, 寄附講座講師 (60634053)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 人工膝関節 / 日本人 / 深屈曲 / キネマティクス / 骨形態 / 扁平率 / インプラントデザイン / 手術手技

Outline of Final Research Achievements

Our developed total knee prosthesis, ACTIYAS, showed appropriate posterior translation of medial and lateral femoral condyles. It also exhibited comparable flexion angle to a conventional high-flexion posterior-stabilized design, showing good function. We are submitting a manuscript based on this research.
CT assessment demonstrated negative correlation between ellipticity, and femoral and tibial transverse diameter, showing decreasing ellipticity with increasing transverse diameter, with greater tendency in femur. Size variation of ACTIYAS can be fit to Japanese bone morphology. We are writing a manuscript based on this research.

Free Research Field

膝関節外科、軟骨再生