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Isolated sagittal craniosynostosis: definition, classification, and surgical indications

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Abstract

Sagittal craniosynostosis (SC) remains the most common type of synostosis, accounting for about a half of all forms. It would result from a mesenchymal disorder involving the intramembranous ossification of the sagittal suture and leading to its early fusion. No specific data on the etiologic factors are currently available. The premature ossification of the sagittal suture can result in three main types of SC, according to the different segment prevalently involved: anterior, posterior, and complete SC. The diagnosis is easily obtained by clinical examination. However, a radiological work up (3D CT scan) may be necessary to rule out hidden venous or cranial anomalies possibly associated with most severe cases, or for the surgical planning. The most common indication for surgery is the improvement of the cosmetic appearance of the skull, since a cranial deformation may have a significant psychological impact on affected subjects. To relieve from raised intracranial pressure is a further indication to surgery. Although an increased intracranial pressure can be demonstrated in a minority of affected children at diagnosis, indeed, it can present later (usually after the second/third year of life) with chronic symptoms. The role of surgery in the preservation of cognitive functions in scaphocephalic patients does not seem to be relevant, since minor anomalies of the cerebral development associated with SC would occur independently from the cranial shape. On the other hand, the surgical correction may show a protective effect on some visual skills, like the ability to fix and follow, and the fixation shift.

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Authors and Affiliations

  1. Pediatric Neurosurgery, Catholic University Medical School, Rome, Italy

    Luca Massimi, Massimo Caldarelli, Gianpiero Tamburrini, Giovanna Paternoster & Concezio Di Rocco

  2. Institute of Neurosurgery—A. Gemelli Hospital, Largo A. Gemelli, 8, 00168, Rome, Italy

    Luca Massimi

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  1. Luca Massimi
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Correspondence to Luca Massimi.

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Massimi, L., Caldarelli, M., Tamburrini, G. et al. Isolated sagittal craniosynostosis: definition, classification, and surgical indications. Childs Nerv Syst 28, 1311–1317 (2012). https://doi.org/10.1007/s00381-012-1834-5

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  • DOI: https://doi.org/10.1007/s00381-012-1834-5

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