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S03035476-96E-2-P41 pdf 3.11 MB 838

基本情報

データ種別：学術成果リポジトリ

タイトル
New Material Property Conversion Equation for Bone Strength Measurement for CT-Based Finite Element Modeling
作成者
MATSUYAMA, Yoshiyuki
MATSUURA, Yusuke
作成者ID
1000060638336
研究者リゾルバ
SUZUKI, Takane
作成者ID
1000030513072
研究者リゾルバ
AKASAKA, Tomoyo
HIMENO, Daisuke
YAMAZAKI, Atsuro
OZONE, Ei
MUKAI, Michiaki
YAMAZAKI, Takahiro
OHARA, Takeru
TANIGUCHI, Shinji
WAKITA, Hiromasa
KUNIYOSHI, Kazuki
作成者ID
1000040375788
研究者リゾルバ
OHTORI, Seiji
作成者ID
1000040361430
研究者リゾルバ
SASHO, Takahisa
作成者ID
1000020312952
研究者リゾルバ
作成者の別表記
松山, 善之
松浦, 佑介
1000060638336
研究者リゾルバ
鈴木, 崇根
1000030513072
研究者リゾルバ
赤坂, 朋代
姫野, 大輔
山崎, 厚郎
小曽根, 英
向井, 務晃
山崎, 貴弘
大原, 建
谷口, 慎治
脇田, 浩正
国吉, 一樹
1000040375788
研究者リゾルバ
大鳥, 精司
1000040361430
研究者リゾルバ
佐粧, 孝久
1000020312952
研究者リゾルバ
内容
[SUMMARY] Computed tomography-based finite element analysis（CT-FEA）has widely been used for the mechanical analysis of osteoporotic bones. To perform CT-FEA, a conversion equation of the materials is used; however, various conversion equations for bone have been reported previously. Therefore, the result depends on which conversion equation is used. New conversion equations must be created because slight variations in the results of the validity verification test using CT-FEA occur, even if various equations are used. This study aimed to identify a more accurate new conversion equation and compare it with past reports. A total of 102 cylindrical cancellous bones（diameter, 10 mm） were collected from nine fresh frozen cadavers. They were thawed at room temperature immediately before the tests were conducted. CT was performed with a calibration phantom, and bone density（g/cm3）was calculated from the obtained Hounsfield unit value using FEA software. The specimens were loaded using a universal testing machine, and yield stress and Young’s modulus were calculated. The correlation between Young’s modulus, yield stress, and bone density obtained from each specimen was investigated, and the bone material property conversion equation was obtained. Previous material property conversion equations were compared with the conversion equation of this study. Young’s modulus and yield stress were correlated with bone density, and the bone material property conversion equation was obtained from the approximate formula. Furthermore, this study’s equation is similar to the Keller vertebra equation. The equation determined in the present study can partly provide a considerable actual bone strength in the CT-FEM calculation compared with the previous studies.
ハンドルURL
https://opac.ll.chiba-u.jp/da/curator/108010/
フルテキストへのリンク
https://opac.ll.chiba-u.jp/da/curator/108010/S03035476-96E-2-P41.pdf
公開者
The Chiba Medical Society
公開者の別表記
千葉医学会
NII資源タイプ
学術雑誌論文
ISSN
03035476
24334235
NCID
AN00142148
掲載誌名
Chiba medical journal
巻
96E
号
2
開始ページ
41
終了ページ
46
刊行年月
2020-04-10
selfDOI
10.20776/S03035476-96E-2-P41
著者版フラグ
publisher
カテゴリ
Chiba Medical Journal (ONLINE ISSN 2433-4235)