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Lambdoid craniosynostosis. A 3D-computerized tomographic approach

N Leboucq1, P Montoya, Y Martinez

  • 1Service de Neuroradiologie, CMC Gui de Chauliac, CHR Montpellier.

Journal of Neuroradiology = Journal De Neuroradiologie
|March 1, 1993
PubMed
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This study identifies 3D-CT imaging features for diagnosing lambdoid suture synostosis in children. Early detection of this rare condition is crucial for timely surgical intervention and cosmetic improvement.

Area of Science:

  • Pediatric Neurosurgery
  • Craniofacial Surgery
  • Medical Imaging

Background:

  • Parieto-occipital flattening in children can indicate underlying craniosynostosis.
  • Lambdoid suture synostosis, particularly isolated forms, is relatively rare.
  • Complex cranial malformations may involve multiple suture fusions.

Purpose of the Study:

  • To establish 3D-CT (three-dimensional computed tomography) imaging characteristics for diagnosing lambdoid suture synostosis.
  • To assess the involvement of coronal and lambdoid sutures in complex cranial malformations.
  • To correlate imaging findings with clinical presentation in pediatric patients.

Main Methods:

  • Retrospective analysis of 3D-CT scans from eleven children (4 months to 8 years) with parieto-occipital flattening.

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  • Evaluation of suture patency, specifically focusing on the lambdoid and coronal sutures.
  • Correlation of imaging findings with the degree and laterality of cranial deformity.

    • Main Results:

    • 3D-CT semeiology was developed to identify lambdoid suture synostosis.
    • Unilateral lambdoid synostosis was observed in nine patients, bilateral in two.
    • The study aimed to differentiate isolated lambdoid synostosis from complex malformations involving other sutures.

    Conclusions:

    • 3D-CT imaging provides valuable insights into diagnosing lambdoid suture synostosis.
    • Isolated lambdoid synostosis, when severe or progressive, may warrant surgical correction for cosmetic reasons.
    • Understanding suture involvement is key for managing complex cranial malformations.