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Updated: May 19, 2026

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
Published on: November 4, 2025
Metopic synostosis
1Dutch Craniofacial Unit, Department of Plastic, Reconstructive and Hand Surgery, Sophia Children's Hospital, Erasmus Medical Center, Dr Molewaterplein 60, 3015GJ, Rotterdam, The Netherlands. j.vandermeulen@erasmusmc.nl
Insights
Metopic synostosis, a skull malformation, is increasingly common and treated with cranioplasty. This condition is associated with higher rates of neurodevelopmental delays, prompting further research into its causes and outcomes.
Area of Science:
- Pediatric Neurosurgery
- Developmental Biology
- Craniofacial Surgery
Background:
- Metopic synostosis, characterized by premature closure of the metopic suture, causes trigonocephaly and frontal bone growth restriction.
- It is the second most frequent type of craniosynostosis, with a rising incidence in recent decades.
- Current treatment involves cranioplasty, typically before one year of age.
Observation:
- Metopic synostosis is correlated with an increased incidence of neurodevelopmental delays.
- Potential causes for these delays include reduced anterior cranial fossa volume or intrinsic brain malformations.
Findings:
- This paper provides a comprehensive update on metopic synostosis.
- Key areas covered include epidemiology, etiology, treatment evolution, follow-up strategies, and neurodevelopmental outcomes.
Implications:
- Understanding the rising incidence and neurodevelopmental links is crucial for early diagnosis and intervention.
- Further research into the etiology of neurodevelopmental delays associated with metopic synostosis is warranted.
- Optimizing cranioplasty timing and neurodevelopmental follow-up can improve patient outcomes.
Abstract:
Premature closure of the metopic suture results in a growth restriction of the frontal bones, which leads to a skull malformation known as trigonocephaly. Over the course of recent decades, its incidence has been rising, currently making it the second most common type of craniosynostosis. Treatment consists of a cranioplasty, usually preformed before the age of 1 year. Metopic synostosis is linked with an increased level of neurodevelopmental delays. Theories on the etiology of these delays range from a reduced volume of the anterior cranial fossa to intrinsic malformations of the brain. This paper aims to provide an overview of this entity by giving an update on the epidemiology, etiology, evolution of treatment, follow-up, and neurodevelopment of metopic synostosis.
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