[Hip Fracture--Epidemiology, Management and Liaison Service. Current status in the World and Japan].

Proximal femoral fracture in osteoporotic fracture is related to the life prognosis in the most severe. Many also report that has been reduced due to the spread of osteoporosis treatment in the world. In Japan in 1985 for the first time, we investigated all patients with hip fractures who were admitted to all hospitals with an orthopedic department in the Niigata Prefecture. We also have investigated the secular trends in the hip fracture incidence from 1985-2010. Proximal femoral fracture has been increasing in 2010, and there are no reports that have decreased. In Japan, where an aging society is to continue in the future, we need urgent countermeasure.