The group of nine patients with suspective coxae fracture was examined radiologicaly and subsequently MRI. RTG finding was completely negative in two cases, in the remaining seven cases was found fissure or fracture of great trochanter.
MRI prooved complete petrochanteric fracture in one case, incomplete petrochanteric fracture in remaning eight cases and fracture of the great trochanter in all nine cases. For diagnostic of occult pertrochanteric fracture were always sufficient frontal cuts only.
Sagittal and transversal cuts only specified the process of fracture line and eventual affection of crista intertrochanterica. MRI is according to the authors indicated by the suspective fractures of proximal femur when there is a positive clinical finding and negative RTG examination.
Fractures where RTG prooves a fissura or a fracture of a great trochanter should be examined by the help of MRI because, in the most of the cases is most likely a occult pertrochanteric fracture