2012年度
第1回生体材料・医用デバイス研究開発コアセンター研究会

日時:平成24年12月10日(月)10:15-11:45
場所:新潟大学ベンチャー・ビジネス・ラボラトリー 1F
   サイエンティフィックビジュアライゼーション室


タイトル(1) : Biomaterials for Orthopaedics

講演者: Professor Elizabeth Tanner
     School of Engineering, University of Glasgow, UK

タイトル(2) : Risk Fracture Prediction of the Osteoporotic Bone
        Using Finite Element Modelling

講演者: Dr Magnús K Gíslason
     Department of Mechanical and Aerospace Engineering,
     University of Strathclyde, Glasgow, Scotland, UK

講演概要:
Osteoporosis can be seen in Spinal Cord Injury (SCI) patients where mechanical aspects instead of pathological cause the bone erosion. SCI patients are commonly subjected to bone fractures, in particular during movement from the wheelchair to the bed. There is a clinical need to estimate the bone risk fracture in patients on a subject specific basis in order to determine the type and the magnitude of loading the patients can be subjected to. This can also have implications during rehabilitation where functional electrical stimulation in conjunction with a locomotive robot can be used to get the patients on their feet again and mechanically load the skeletal frame under controlled conditions. Subject specific finite element models of the tibia of SCI patients were created and were compared to an able bodied control group. Scans were obtained using a pQCT scan, where the images were imported into Mimics where edge detection of the bone was carried out and a three dimensional finite element model of the bone created. Material properties of the mesh were obtained through the grey scale value of each image slice, connecting the density, element stiffness as well as the ultimate stress of each element together. Loading was applied to the models and the risk of fracture calculated using Abaqus (v.6.11) and compared between the two groups.

(世話役:田邊裕治,プラムディタ・ジョナス)

Prof.Elizabeth Tanner
公演中のProf.Elizabeth Tanner先生
Dr.Gíslason
講演が終わって質問に回答しているDr.Gíslasonさん