Isolated sagittal craniosynostosis: definition, classification, and surgical indications

Area of Science:

• Craniofacial Surgery
• Pediatric Neurosurgery
• Developmental Biology

Background:

• Sagittal craniosynostosis (SC) is the most frequent type of craniosynostosis, caused by premature fusion of the sagittal suture.
• Etiologic factors for SC are not well-defined, but it stems from a disorder of intramembranous ossification.
• SC can manifest in anterior, posterior, or complete forms, impacting skull shape.

Purpose of the Study:

• To review the clinical presentation, diagnosis, and management of sagittal craniosynostosis.
• To discuss the indications for surgical intervention in SC patients.
• To evaluate the impact of surgical correction on intracranial pressure, cognitive function, and visual skills.

Main Methods:

• Clinical examination for diagnosis.
• 3D CT scans for detailed imaging, surgical planning, and ruling out associated anomalies.
• Review of surgical outcomes related to cosmetic appearance, intracranial pressure, cognition, and visual function.

Main Results:

• Diagnosis is typically clinical, with 3D CT scans aiding in complex cases and surgical planning.
• Primary surgical indications include cosmetic improvement and relief of elevated intracranial pressure, which may develop later in childhood.
• Surgery does not appear to preserve cognitive functions but may offer protective benefits for certain visual skills.

Conclusions:

• Sagittal craniosynostosis requires careful diagnosis and management, with surgery addressing cosmetic and pressure-related concerns.
• While cognitive development is likely independent of cranial shape, surgical intervention may positively influence visual development.
• Further research into etiology and long-term outcomes is warranted.