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Development of the frontal sinus and glabellar morphology after frontocranial remodeling for craniosynostosis in
E Arnaud1, D Renier, D Marchac
1Craniofacial Anomalies, Hôpital Necker Enfants Malades, Paris, France.
Insights
Frontal sinus development in craniosynostosis patients is influenced by surgery type and follow-up age, not surgery age. Satisfactory glabellar projection can be achieved without frontal sinus development after significant supraorbital bar advancement.
Area of Science:
- Craniofacial Surgery
- Pediatric Neurosurgery
- Plastic Surgery
Background:
- Craniosynostosis involves premature fusion of skull sutures, impacting facial development.
- Frontal sinus development is a key aspect of craniofacial morphology.
- Understanding frontal sinus pneumatization is crucial for surgical planning and aesthetic outcomes.
Purpose of the Study:
- To analyze frontal sinus development in craniosynostosis patients.
- To investigate the correlation between surgical techniques and frontal sinus pneumatization.
- To examine the relationship between frontal sinus development and glabellar morphology.
Main Methods:
- Retrospective review of 90 craniosynostosis cases operated between 1976-1988.
- Analysis of clinical and radiographical data.
- Correlation studies on surgical advancement, age, and frontal sinus development.
Main Results:
- Frontal sinus pneumatization varied with surgery type and age at review, but not age at surgery.
- Significant supraorbital bar advancement resulted in satisfactory glabellar projection, often without frontal sinus development.
- No significant advancement correlated with frontal sinus pneumatization similar to the general population.
Conclusions:
- Surgical approach significantly impacts frontal sinus development in craniosynostosis.
- Frontal sinus absence is not a prerequisite for successful glabellar contouring.
- A classification of frontal advancement types is proposed based on findings.
Abstract:
General considerations about frontal sinus development are first discussed. We include retrospective clinical and radiographical studies dealing with 90 craniosynostoses among 850 patients operated in the Craniofacial Unit of Necker's Hospital for Sick Children (1976-1988; Paris, France). The incidence of frontal sinus development is analyzed: The pneumatization of the frontal bone seemed to develop according to the type of surgery and to the age at which review was realized, but was not linked to the age at which surgery was performed. The surgery consisted of fronto-orbital remodeling after supraorbital bar mobilization. The median age at surgery was approximately 3 years, and the median length of the postoperative follow-up was 6.5 years, depending on the type of pathology. The correlation between frontal sinus development and glabellar morphology are also analyzed: When there was a significant advancement of the supraorbital bar, the projection of the glabella was satisfactory without any frontal sinus. When no significant advancement was performed, pneumatization of the frontal bone was as frequent as in the general population and was dependent on the underlying frontal sinus. A classification of the different type of frontal advancement is proposed.