908 MR画像を用いた距腿関節の接触領域評価(J04-2 臨床医歯学における非・低侵襲計測技術の展開(2) MRIおよびX線応用計測,ジョイントセッション,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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The purpose of this study is to evaluate contact characteristics of talocrural joint using MRI which enables us to observe contact situation of the joint in vivo. We investigated the change of contact region in normal ankle in plantal and dorsal flexions under compressive and non-compressive conditions. As a result, the contact area appeared to move to anterior surface in plantar flexion, and move to the posterior surface in dorsal flexion, respectively. Both compressed and non-compressed contact area became largest in neutral position and showed a tendency to decrease with an increase of a flexure angle. Furthermore, it showed positive correlation between body height and normalized contact area, while there was negative correlation between talus ratio of flattening and normalized contact area.
社団法人日本機械学会の論文
2008-08-02