Subtrochanteric Femur Fracture: Pathogenesis and clinical findings • Subtrochanteric region spans 5 cm distally from the lesser trochanter • Major traumas is most common in young and low energy fall fractures in elderly Causes: • Major trauma -> An excess amount of force is transferred to the femur ( e.g. fall from height in elderly, motor vehicle accident in young people) • Osteoporosis -> Low energy forces exerted onto the lateral side of the weakened femur (e. g. low level fall) • Atypical femur fracture -> Bisphosphonate suppresses bone remodeling -> Microscopic damage weakens the bone #Subtrochanteric #Femur #Fractures #msk #orthopedics #diagnosis #differential #causes #pathophysiology
