TY - JOUR
T1 - Biomechanical evaluations of hip fracture using finite element model that models individual differences of femur
AU - Tanaka, Eiichi
AU - Yamamoto, Sota
AU - Sakamoto, Seiji
AU - Nakanishi, Takafumi
AU - Harada, Atsushi
AU - Mizuno, Masashi
PY - 2004/9
Y1 - 2004/9
N2 - This paper is concerned with an individual finite element modeling system for femur and biomechanical evaluations of the influences of loading conditions, bone shape and bone density on risks of hip fracture. Firstly, a method to construct an individual finite element model by morphological parameters that represent femoral shapes was developed. Using the models with different shapes constructed by this method, the effects of fall direction, posture of upper body, femur shape and bone density on hip fracture were discussed. The results showed that the fall direction influences the fracture type but its effects depend on the sex. A backward posture increases a risk of a cervical fracture. Diameter of femur neck showed significant influence on fracture type. Though osteoporosis does not cause a fatal decrease of bone strength, it increases the risk of hip fracture.
AB - This paper is concerned with an individual finite element modeling system for femur and biomechanical evaluations of the influences of loading conditions, bone shape and bone density on risks of hip fracture. Firstly, a method to construct an individual finite element model by morphological parameters that represent femoral shapes was developed. Using the models with different shapes constructed by this method, the effects of fall direction, posture of upper body, femur shape and bone density on hip fracture were discussed. The results showed that the fall direction influences the fracture type but its effects depend on the sex. A backward posture increases a risk of a cervical fracture. Diameter of femur neck showed significant influence on fracture type. Though osteoporosis does not cause a fatal decrease of bone strength, it increases the risk of hip fracture.
KW - Biomechanics
KW - Femur
KW - Finite element analysis
KW - Hip fracture
KW - Individual modeling
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U2 - 10.1299/kikaia.70.1178
DO - 10.1299/kikaia.70.1178
M3 - Article
AN - SCOPUS:10044293953
VL - 70
SP - 1178
EP - 1185
JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
SN - 0387-5008
IS - 9
ER -