犬用人工股関節の開発(G02-4 人工関節,G02 バイオエンジニアリング部門)

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  • Development of canine artificial hip prosthesis

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Canine total hip replacement (THA) is one of the treatments of canine osteoarthritis (OA). The bone screws are used to fix acetabular cup on THA. Two screws are mainly used. However, compared to human THA, these screws were not considered enough about direction, size, and so on. The porpose of this study is to consider the possibility of three screws fixing. Finite element method was used for comparing two screws fixing and three screws. Rightly, three screws have higher fixing strength. However, these also have higher risk of bone fracture. From results, three screws and two screws are not significantly different on acetabular bone stress. Therefore, the possibility of three screws fixing was suggested.

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