A new approach of crenellated fronto-orbital advancement for the management of trigonocephaly: Technical note

Abstract

Trigonocephaly is a craniosynostosis characterized by a premature fusion of the metopic suture associating a characteristic triangular head shape, with a frontal medial crest and hypotelorism. Various techniques have been described for its surgical treatment which is usually performed during the first year of life. However, there might be cases with a late referral, after the age of one year. One of the technical issues with a fronto-orbital advancement surgery in a child over one year of age is that there is a significant risk of persistent residual bone defects. This article describes a surgical technique of crenellated fronto-orbital advancement for correcting trigonocephaly in children over one year of age, allowing to reduce residual bone defects.

Keywords: Anterior frontoorbital advancement; Avancement frontoorbitaire; Cranial defect; Craniosténose; Craniosynostosis; Défect crânien; Late results; Metopic synostosis; Ossification; Outcome; Résultat; Résultats tardifs; Suture métopique; Trigonocephaly; Trigonocéphalie.