With the development of economy and the progress of medical science and technology,artificial pros-thesis replacement has become an important means to improve the dysfunction caused by human bone diseases.However,there are still some loose phenomena caused by stress shielding.To solve the complications of aseptic loosening after calcaneal prosthesis replacement,an optimal design method for the prosthesis was proposed.The prosthesis was designed and optimized according to the real bone shape and the replacement requirements by the combination of computed tomography(CT)technology,computer-aided design,finite element analysis,and power flow theory.CT data were imported into MIMICS and Geomagic Studios.UG was used to obtain the geometric model of the human skeleton.Then,the 3D finite element model of the prosthesis was established by combining the finite element software Abaqus,and a series of finite element analysis was carried out.The prosthesis was topologically optimized and filled with a porous structure.The prosthesis was implanted by computer simulation.Finally,the power flow method was used to compare the dynamic performance and energy transfer before and after the prosthesis replacement to verify the rationality of the prosthesis design.In this paper,this method was used to optimize the design of the calcaneal prosthesis,and the research shows that this method can reduce the stress shielding effect of the calcaneal prosthesis.From the case of calcaneal prosthesis optimization,this method is not only a supplement to the contemporary biomechanical theory but also can guide the design of bone prosthesis in bone prosthesis replacement surgery.

LIU Xiaoying;YUE Yong;WANG Chongning;HUANG Jiazan;HUANG Xianwei;HAO Yanhua

College of Mechanical Engineering and Automation,Huaqiao University,Xiamen 361021,Fujian,China;The First Affiliated Hospital of Xiamen University,Xiamen 361003,Fujian,China

上海交通大学学报（英文版）

[1]LIU Xiaoying;YUE Yong;WANG Chongning;HUANG Jiazan;HUANG Xianwei;HAO Yanhua-.Topology Optimization Method for Calcaneal Prosthesis)[J].上海交通大学学报（英文版）,2022(02):240-249

Calcaneal,Prosthesis,Studios

Topology,Optimization,Method,With,development,economy,progress,medical,science,technology,artificial,replacement,has,become,important,means,improve,dysfunction,caused,by,human,bone,diseases,However,there,still,some,phenomena,stress,shielding,solve,complications,aseptic,loosening,after,calcaneal,prosthesis,optimal,method,was,proposed,designed,optimized,according,real,shape,requirements,combination,computed,tomography,computer,aided,finite,element,analysis,power,flow,theory,data,were,imported,into,MIMICS,Geomagic,UG,obtain,geometric,model,skeleton,Then,established,combining,software,Abaqus,series,carried,out,topologically,filled,porous,structure,implanted,simulation,Finally,compare,dynamic,performance,energy,transfer,before,verify,rationality,In,this,paper,research,shows,that,reduce,effect,From,case,optimization,not,only,supplement,contemporary,biomechanical,but,also,guide,surgery

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