sagittal synostosis
Pronunciation: SAJ-ih-tal sin-os-TOE-sis
Premature fusion of the sagittal suture causing abnormal skull growth and shape.
Full Definition
Sagittal synostosis is the most common form of single-suture craniosynostosis, occurring in approximately 1 in 4,200 births. It involves premature closure of the sagittal suture, which runs along the top of the skull from front to back. This fusion restricts lateral growth of the skull, causing compensatory growth in the anteroposterior direction, resulting in dolichocephaly or scaphocephaly. The condition may lead to increased intracranial pressure and requires surgical intervention, typically through either open cranial vault reconstruction or endoscopic suturectomy with postoperative helmet therapy. Early diagnosis and treatment are crucial for optimal neurological and cosmetic outcomes.
Usage
Usage note: May also be written as 'sagittal suture synostosis' for clarity.
In Context
- "The infant was diagnosed with sagittal synostosis based on characteristic skull shape and CT findings." — diagnostic report
- "Endoscopic sagittal suturectomy was performed for the sagittal synostosis with excellent postoperative results." — operative summary