Subject-specific Finite Element Modelling of the Human Shoulder Complex Part 1:Model Construction and Quasi-static Abduction Simulation  

作　　者：Manxu Zheng Zhihui Qian Zhenmin Zou Chris Peach Mohammad Akrami Lei Ren 

机构地区：[1]School of Mechanical,Aerospace and Civil Engineering,University of Manchester,Manchester,M139PL,UK [2]Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong province,School of Biomedical Engineering,Sun Yat-sen University,Guangzhou 510006,China [3]Key Laboratory of Bionic Engineering,Ministry of Education,Jilin University,Changchun 130022,China [4]Shoulder and Elbow Unit,The University Hospital of South Manchester NHS Foundation Trust,Southmoor Road,Wythenshawe,Manchester M239LT,UK [5]Department of Engineering,College of Engineering,Mathematics,and Physical Sciences,University of Exeter,Exeter EX44QF,UK

出　　处：《Journal of Bionic Engineering》2020年第6期1224-1238,共15页仿生工程学报（英文版）

基　　金：This work was supported by the Grant of Bio-technology and Biological Sciences Research Council of GB(No.BB/H002782/1);the Project of National Natural Science Foundation of China(Nos.51475202 and 51675222).

摘　　要：Human shoulder joints exhibit stable but highly active characteristics due to a large amount of soft tissues.Finite Element(FE)modelling plays an important role in enhancing our understanding of the mechanism of shoulder disorders.However,the previous FE shoulder models largely neglected the Three-Dimensional(3D)volume of soft tissues and their sophisticated interactions with the skeletons.This study develops a 3D model of the rotator cuff and deltoid muscles and tendons.It also includes cartilage and,for the first time,main ligaments around the joint to provide a better computational representation of the delicate interaction of the soft tissues.This model has potential value for studying the force transfer mechanism and overall joint stability variation caused by 3D pathological changes of rotator cuff tendons.Motion analysis systems and Magnetic Resonance(MR)scans were used to collect shoulder movement and geometric data from a young healthy subject,respectively.Based on MR images,a FE model with detailed representations of the musculoskeletal components was constructed.A multi-body model and the measured motion data were utilised to estimate the loading and boundary conditions.Quasi-static FE analyses simulated four instants of the measured scapular abduction.Simultaneously determined glenohumeral motion,stress/strain distribution in soft tissues,contact area,and mean/peak contact pressure were found to increase monotonically from 0°to 30°of abduction.The results of muscle forces,bone-on-bone contact force,and superior-inferior movement of the humeral centre during motion were consistent with previous experimental and numerical results.It is concluded that the constructed FE shoulder model can accurately estimate the biomechanics in the investigated range of motion and may be further used for the comprehensive study of shoulder musculoskeletal disorders.

关 键 词：shoulder complex BIOMECHANICS finite element glenohumeral joint SUBJECT-SPECIFIC 

分 类 号：Q81[生物学—生物工程]