論文

査読有り
2020年

大菱中手関節のMRIによる3次元生体内接触動態解析

実験力学
  • 森清 友亮
  • ,
  • 坂本 信
  • ,
  • 坂上 勇太
  • ,
  • 風間 清子
  • ,
  • 小林 公一
  • ,
  • 田邊 裕治

20
1
開始ページ
39
終了ページ
44
記述言語
日本語
掲載種別
DOI
10.11395/jjsem.20.39
出版者・発行元
日本実験力学会

<p> Trapeziometacarpal joint (TMC joint) of thumb is one of the joints having a complicated shape which enables to generate a wide variation of finger movements in daily life. It is important to clarify the accurate in vivo contact behavior of healthy TMC joint when evaluating post-operative joint movements. Thus, author analyzed TMC joint contact behavior in 4 different finger positions of 8 healthy adult males using magnetic resonance imaging (MRI) system. From MR images, three-dimensional bone models were constructed and a three-dimensional coordinate system was defined by the characteristic shape of each bone model. Then, three bone axial angles and three-dimensional bone motion of each 4 positions in the TMC joint were calculated: abduction-adduction, extension-flexion, pronation-supination, and Euler angles. Furthermore, contact areas of the articular cartilage in each of 4 positions were clarified from MR images. Results have shown that, the contact area changed with changing of the thumb position and it was maximum oat the thumb extension. In addition, it was clarified that the contact area moved according to the thumb position.</p>

リンク情報
DOI
https://doi.org/10.11395/jjsem.20.39
CiNii Articles
http://ci.nii.ac.jp/naid/130007828527

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