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Asterion region synostosis

D F Jimenez1, C M Barone, R V Argamaso

  • 1University of Missouri-Columbia Medical Center 65212.

The Cleft Palate-Craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association
|March 1, 1994
PubMed
Summary
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Posterior plagiocephaly can result from asterion stenosis, not just lambdoid suture fusion. Surgical correction of this specific skull base stenosis yields excellent aesthetic outcomes.

Area of Science:

  • Craniofacial surgery
  • Pediatric neurosurgery
  • Plastic surgery

Background:

  • Posterior plagiocephaly is often linked to lambdoid suture synostosis, though its diagnosis and treatment remain debated.
  • Many cases present with open lambdoid sutures, suggesting alternative etiologies for skull deformities.

Purpose of the Study:

  • To investigate the role of asterion stenosis in unilateral posterior plagiocephaly.
  • To describe the diagnosis and surgical management of asterion stenosis.

Main Methods:

  • Study included nine patients with unilateral posterior plagiocephaly and open lambdoid sutures.
  • Diagnosis involved 3D CT scans, surgical confirmation, and histological analysis of the stenosed asterion region.
  • Surgical correction utilized resection and reconstruction techniques including bandeau, barrel staves, and bone grafts.

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Main Results:

  • All nine patients had stenosed asterions, affecting adjacent sutures, with no positional molding or torticollis.
  • Patients exhibited progressive skull base changes, including ear shifts and facial asymmetry.
  • Surgical intervention resulted in excellent aesthetic outcomes for all patients.

Conclusions:

  • Asterion stenosis is a distinct cause of unilateral posterior plagiocephaly.
  • Early diagnosis and surgical correction of asterion stenosis are crucial for favorable aesthetic results.