STEP EXPANSION OF THE FRONTAL BAR - CORRECTION OF TRIGONOCEPHALY

In severe trigonocephaly, metopic suture synostosis extends inferiorly to involve the frontoethmoid suture, resulting in orbital hypoteloris m. To correct this growth disturbance, a nasofrontal osteotomy with bo ne graft interposition has been advocated. We describe an alternative procedure, supraorbital bar step expansion, which does not require a b one graft or metallic miniplate fixation. The supraorbital bar step ex pansion avoids donor site morbidity and the potential for plate migrat ion. This procedure not only corrects orbital distopia, but also impro ves the anterolateral position of the brews, lateral canthus, and temp oral regions.