Classification of Hip Fracture According to Anatomical Fracture Site. Hip fractures are anatomically classified in relation to the hip capsule as intracapsular (i.e., at the femoral neck) or extracapsular (i.e., intertrochanteric or subtrochanteric). Femoral-neck fractures may be nondisplaced (i.e., very little separation at the fracture site, occurring in approximately one third of femoral-neck fractures) or displaced (i.e., greater separation). Fractures below the femoral neck are referred as intertrochanteric fractures, and those below the lesser trochanter as subtrochanteric fractures. #Anatomy #Ortho #EM #Classification #HipFracture #FemoralShaft #Intracapsular #Extracapsular #Intertrochanteric #Subtrochanteric #FemoralHead #Subcapital #NEJM