2 | TROCHANTERIC FRACTURE CLASSIFICATION
There are many different classifications of the trochanteric fractures, where we use the AO or Muller classification, which most studies have used.
Type A1: Pertrochanteric fractures are simple with 2 fragments. (Figure 1)
Fracture type A2 : Pertrochanteric fractures are multi-fragmentary. (Figure 1)
Type A3: Intertrochanteric fractures all have a fracture line through the lateral femoral wall. (Figue 3)