The Morphological Measurements with a Micro CT and the Stress Analyses of the Adaptive Remodeling by Applied Mechanical Stimuli in Rat Caudal Vertebrae
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概要
- 論文の詳細を見る
To observe the remodeling process in bone adapted to mechanical stimuli, a microcomputed tomography (micro CT) system with a high spatial resolution was utilized. The rat fifth caudal vertebrae (C5) were subjected to daily axial or offset loads. Morphological alterations of C5 were measured periodically and non-invasively with the micro CT between daily mechanical stimuli for 14 days. The finite element (FE) models were built from the binary cross-sectional images of cortex and trabecular bone architecture of C5. Von Mises stresses were calculated by applying the contact pressures from the rigid-body spring model (RBSM) analyses to the FE-models as boundary conditions. The transformations of cortex and the increases of the cortical area were observed in the loaded rats. FE-analyses in the offset loaded rat indicated that von Mises stress distributed uniformly under the analytical offset loaded condition. This fact suggests that the C5 would adapt to the offset loads applied externally by morphological alterations.
- 一般社団法人日本機械学会の論文
- 1999-09-15
著者
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Iwamoto Y
Graduate School Of Medical Sciences Kyushu Univ.
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Iwamoto Yukihide
吉塚林病院 整形外科
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Iwamoto Y
Department Of Orthopedic Surgery Graduate School Of Medical Sciences Kyushu University
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Iwamoto Yukihide
Department Of Orthopaedic Surgery Graduate School Of Medical Sciences Kyushu University
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Miura Hiromasa
Department Of Orthopaedic Surgery Kyushu University Faculty Of Medicine
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Murakami Teruo
Department Of Intelligent Machinery And Systems Faculty Of Engineering Kyushu University
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HIGAKI HIDEHIKO
Department of Mechanical Engineering, Faculty of Engineering, Kyushu Sangyo University
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Mawatari Taro
Department Of Orthopaedic Surgery Clinical Medicine Graduate School Of Medical Sciences Kyushu Unive
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Kurata Kosaku
Department Of Intelligent Machinery And Systems Graduate School Of Engineering Kyushu University
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Kurata Kosaku
Department Of Biorobotics Faculty Of Engineering Kyushu Sangyo University
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Higaki Hidehiko
Department Of Biorobotics Faculty Of Engineering Kyushu Sangyo University
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Iwamoto Yukihide
Department Of Orthopaedic Surgery Clinical Medicine Graduate School Of Medicine Kyushu University
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Iwamoto Yukihide
Department Of Orthopaedic Surgery Clinical Medicine Graduate School Of Medical Sciences Kyushu Unive
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