A hip fracture is a femoral fracture that occurs in the proximal end of the femur (the long bone running through the thigh), near the hip joint. The term "hip fracture" is commonly used to refer to four different fracture patterns and is often due to osteoporosis; in the vast majority of cases, a hip fracture is a fragility fracture due to a fall or minor trauma in someone with weakened osteoporotic bone. Most hip fractures in people with normal bone are the result of high-energy trauma such as car accidents. In the UK, the mortality following a fractured neck of femur is between 20% and 35% within one year in patients aged 82, ± 7 years, of which 80% were women...