MISC

2017年9月2日

ヒト母指指節間関節のMRIによる三次元生体内接触挙動解析

日本機械学会年次大会講演論文集(CD-ROM)
  • 森清友亮
  • ,
  • 坂本信
  • ,
  • 杉田魁人
  • ,
  • 風間清子
  • ,
  • 小林公一
  • ,
  • 田邊裕治

2017
0
開始ページ
ROMBUNNO.J0210202
終了ページ
記述言語
日本語
掲載種別
出版者・発行元
一般社団法人 日本機械学会

<p>The interphalangeal (IP) joint of the thumb are formed by the articulation between the proximal phalanges head (PPH) and the distal phalanges base (DPB). The measurement of the contact behavior, i.e., distribution and magnitude of the joint contact area with motion is necessary to understand the effects of loading on articular cartilage. The purpose of this study is to determine the in vivo contact behavior of the IP joint of thumb using the MRI. Five normal right thumbs from 5 healthy subjects were examined. Subjects were scanned with their dominant hand in three positions. Contact area was determined by measuring the length of contact between the PPH and DPB in each slice, multiplying this length by slice thickness of 1-mm, and summing these values. We found that the average cartilage contact area attains a minimum value in the neutral position. We also found that the distal phalanx of thumb IP joint was caused internal rotation on the distal phalanx with flexion.</p>

リンク情報
J-GLOBAL
https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201802274173293063
CiNii Articles
http://ci.nii.ac.jp/naid/130006550023
URL
http://jglobal.jst.go.jp/public/201802274173293063

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