[Basic considerations in fractures of the trochanter major in and after angle plate osteosynthesis]

During the operative treatment of pertrochanteric fractures intra- and postoperative fractures of the trochanter major are wellknown. In this paper the most important reasons for this complication are explained and advices to avoid it are given. One main cause for this complication is the cutting off of the M. vastus lateralis during the operation as it is described in the most technical handbooks of surgery. The most important point of weakness is the big hole in the lateral femoral corticalis, where the blade of the angle-plate is inserted into the femoral neck and head.