Analysis of Femur Fracture in Aged Person's Fall
Details
Femur fracture in aged people is a serious problem as it sometimes leads to be bedridden. Every year approximately 90,000 people in Japan are found to be suffered from femoral neck fracture. 75 percentages of the fractures are due to falling. Since bone density reduces with aging, the possibility of fracture in aged people is very high. In this study, stress distributions at different possible impact locations were analyzed using 3-dimensional Finite Element Method. As a result, it was clear that stress distribution around the femoral neck greatly depended on the impact location due to falling. The fracture risk was found to be increased rapidly with aging. Under applying the impact force at posterior direction in great trochanter, femoral neck showed the highest fracture risk.
