New processing of apataite fiber and some application for medical use

A series of newly developed HAP (Hydroxyapataito) fiber reinforced bone cement composite ranging from 5–25% by weight fraction have consequently been developed and investigated for use in orthopedic surgery. The resulting HAP fiber reinforced bone cement was characterized by measurement made of tensile strength, fracture mechanics parameter including fatigue crack propagation (FCP), creep resistance, polymerization features and degree of monomer release. It is demonstrated that HAP reinforcement provides an increase in fracture toughness, FCP resistance and creep resistance with reductions in exthothermic temperature and in monomer release ratio. This study offers considerable potential for addressing the major problem in current orthopedic practice.