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Craniosynostosis of the Sphenofrontal Suture: Definition of the Main Signs of Craniofacial Deformity

Aims: The aim of this study is to compare clinical features of sphenofrontal craniosynostosis (SFC) and unilateral coronary craniosynostosis. Settings and Design: This was a retrospective study with two groups of patients with sphenofrontal and coronary craniosynostosis. Materials and Methods: This was a retrospective study of the 1999– 2016 archive data in Russian Children's Clinical Hospital. Ninety-five patients were diagnosed with frontal plagiocephaly. Eighty-three had deformations of unilateral craniosynostosis of coronary suture, 12 had premature closures of sphenofrontal suture. The age at the time of diagnosis varied from 5 months to 2, 5 years. Results: SFC is featured by ipsilateral flattening of forehead and supraorbital margin, and ipsilateral dystopia of supraorbital margin downward. X-ray signs are the closure of sphenofrontal suture on the lesion side with open and symmetrically located remaining skull sutures and contralateral deviation of the midline of the ethmoid. Conclusions: SFC distinguishes from other plagiocephalias by following signs: supraorbital margin on the affected side is shifted downward; tip of the nose is displaced toward the affected side, root of the nose toward the healthy side. These signs facilitate correct diagnosis and treatment tactics.