[Femoral neck fracture and femoral head necrosis].

In this study we wanted to demonstrate the relationship between the fracture of the femoral neck and femoral head necrosis. For this purpose we reviewed the new literature, the dates of the ASIF documentation and some cases from the Davos Hospital. Head necrosis appears in all types of fractures and is independent of the implant. We can find femoral head necrosis in all age groups but the risk is higher the younger the patient. The necrosis can develop many years after the accident. There are not enough long-term studies to explain this phenomenon.