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The subarachnoid spaces in craniosynostosis
W M Chadduck1, J B Chadduck, F A Boop
1Pediatric Neurosurgery, Arkansas Children's Hospital, Little Rock.
Neurosurgery
|June 1, 1992
Summary
Craniosynostosis, a skull growth disorder, causes predictable changes in brain fluid spaces. These compensatory mechanisms suggest hydrodynamic forces play a role in skull development.
Area of Science:
- Neurosurgery
- Pediatric Radiology
- Developmental Biology
Background:
- Craniosynostosis involves premature fusion of cranial sutures, impacting skull shape and potentially brain development.
- Understanding compensatory skull growth patterns is crucial for diagnosis and treatment planning.
Purpose of the Study:
- To investigate the relationship between different types of craniosynostosis and the resulting patterns of subarachnoid space dilatation.
- To explore the role of hydrodynamic mechanisms in compensatory skull changes.
Main Methods:
- Retrospective review of 85 patients with various forms of craniosynostosis.
- Analysis of imaging findings to identify patterns of subarachnoid space dilatation correlated with specific suture fusions.
Main Results:
- Sagittal synostosis showed frontal and occipital subarachnoid space dilatation, linked to skull elongation.
- Unilateral coronal synostosis correlated with subarachnoid space changes over contralateral frontal lobe and ipsilateral temporal lobe.
- Bilateral coronal synostosis presented with enlarged subarachnoid spaces over brain convexities.
- Lambdoid synostosis and deformities showed varied subarachnoid space changes, with some suggesting brain atrophy and motor delay.
Conclusions:
- Predictable patterns of subarachnoid space dilatation occur in response to specific craniosynostosis types.
- Focal hydrodynamic mechanisms are implicated in the compensatory skull growth observed in craniosynostosis.
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