Takaaki Sarai

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The human femur is subjected to an impulsive load at its distal end during daily life. Femoral bone fracture caused by impact loading is common in elderly women. It is important to clarify the dynamic response of the femur and to evaluate the change in its stress state during impact loading. A 3-dimensional model of the femur was prepared in the present(More)
STUDY DESIGN Retrospective case series of one institute database. OBJECTIVE To investigate the differences in the metallic strength of rods used for implant failure in the dual growing rod technique and evaluate clinical outcomes. SUMMARY OF BACKGROUND DATA The dual growing rod technique in which implanted rods extend with the growth of the spine is a(More)
The authors have investigated the frequency of illicit drug use, and spontaneous and drug-provoked panic disorder symptoms in Hungarian youths. A semi-structured self-reporting questionnaire (with questions about drug usage and the persistence of some DSM-IV panic disorder symptoms) was filled out in discos/nightclubs, secondary schools and universities.(More)
Fall accidents are a common cause of femoral fracture in the elderly. The greater trochanter of the femur is often subjected to impact loading by a sideways fall, and thus it is worth studying the impulsive stress waves propagating in the femur. In this study, the impulsive stress was analyzed by the dynamic finite element method using a 3-dimensional model(More)
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