A systematic approach to the diagnosis of transethmoidal fractures in CT.

The experience of this study is based on about 50 Le Fort II and III fractures that have been visualised by CT. A systematic approach is offered to diagnose these fractures which may be summarised under the heading of transethmoidal fractures. This will enable the radiologist to establish a meaningful diagnosis of these lesions at an early stage when the severely traumatised patient undergoes his first cranial CT. It needs only little extra time, but the patient is saved additional investigations requiring a specialist's attention, time, transportation, and changes in position that may, at times, be hazardous.