期刊名称：Lecture Notes in Engineering and Computer Science
印刷版ISSN：2078-0958
电子版ISSN：2078-0966
出版年度：2019
卷号：2240
页码：559-564
出版社：Newswood and International Association of Engineers
摘要：Total hip joint replacement is a common
procedure to retrieve the lower limp functionality for
motorcycle accidents, and hip fracture due to bone weakness.
Stress shielding is the factor that determine the duration of the
implant functionality, such that the bone will dissolve around
the implant which leads implant rejection. In order to perform
lower stress shielding CT scan images are converted to finite
element model then the optimization is performed for the
actual bone modeling. Three methods of optimization are used
to perform implant design with minimizing stress shielding as
the objective function. Conformal lattice structures, level set
shape optimization and solid isotropic material propertiesbased
topology optimization are used. Level set method showed
better result by reducing stress shielding to 81%. Conformal
lattice structure increased stress shielding due to sharp edges
of the metal cellular structure. Solid isotropic material
properties topology optimization reduced the stress shielding to
78%.
关键词：Femoral implant; level set method; topology
optimization; stress shielding
