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Skull base in trigonocephaly.

L Genitori1, S Cavalheiro, G Lena

  • 1Department of Pediatric Neurosurgery, Hôpital des enfants La Timone, Marseille, France.

Pediatric Neurosurgery
|January 1, 1991
PubMed
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This study examines skull base morphology in children with trigonocephaly using advanced imaging. Findings suggest distinct patterns necessitating further classification of trigonocephaly malformations.

Area of Science:

  • Craniofacial Surgery
  • Pediatric Neurosurgery
  • Medical Imaging

Background:

  • Trigonocephaly, a premature fusion of the metopic suture, leads to characteristic skull deformities.
  • Understanding skull base morphology is crucial for surgical planning and outcomes in pediatric craniosynostosis.

Purpose of the Study:

  • To investigate and characterize the skull base abnormalities in children with trigonocephaly.
  • To compare skull base parameters between trigonocephalic patients and a control group.
  • To explore the potential for subdividing trigonocephaly based on skull base morphology.

Main Methods:

  • Clinical anthropometric measurements and bidimensional (2D) and three-dimensional (3D) computed tomography (CT) scans were utilized.
  • Analysis included anterior fossa volume, orbital volume, basal suture patency, and spatial orientation of cranial bones.

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  • Measurements of orbital, nasion-pterional, and clinopterional angles, along with specific distances, were performed using CT data.

    • Main Results:

    • Distinct skull base patterns were identified in trigonocephalic children compared to controls.
    • 3D CT analysis revealed specific alterations in anterior fossa and orbital volumes, suture permeability, and bone orientation.
    • CT-derived measurements of angles and distances provided quantitative data on craniofacial deformities associated with trigonocephaly.

    Conclusions:

    • The study highlights significant skull base malformations in trigonocephaly.
    • Quantitative analysis of skull base morphology using CT imaging offers a novel approach to understanding these complex conditions.
    • The findings support the necessity for subdividing trigonocephaly based on distinct skull base characteristics.