Scaphocephaly is a type of cephalic disorder which occurs when there is a premature fusion of the sagittal suture. The sagittal suture joins together the two parietal bones of skull. Scaphocephaly is the most common of the craniosynostosis conditions and is characterized by a long, narrow head. Scaphocephaly is a type of cephalic disorder which occurs when there is a premature fusion of the sagittal suture. The sagittal suture joins together the two parietal bones of skull. Scaphocephaly is the most common of the craniosynostosis conditions and is characterized by a long, narrow head. The term is from Greek skaphe meaning 'light boat or skiff' and kephale meaning 'head') describes a specific shape of a long narrow head that resembles an inverted boat. This condition can be corrected by surgery if the child is young enough. The use of a cranial remolding orthosis can also benefit the child if the child begins wearing it at an early age.