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Unicoronal Synostosis

Unicoronal Synostosis

Unicoronal Synostosis is a type of craniosynostosis where one of the coronal sutures (the joints running from ear to the top of the head) closes too early, leading to asymmetry in the forehead and face. This condition can affect both appearance and, in some cases, brain development, making early diagnosis and treatment essential.

Normally, the coronal sutures remain open during infancy to allow the skull to expand as the brain grows. In unicoronal synostosis, only one side closes prematurely, causing the forehead and brow on that side to flatten, the eye socket to become elevated, and the nose and facial features to shift off-center. This leads to a condition called anterior plagiocephaly.

Signs & Symptoms

  • Flattened forehead on one side

  • Raised eye socket (orbital rim) on the affected side

  • Nose deviated toward the opposite side

  • Misaligned ears or eyebrows

  • Uneven head or facial shape

  • In some cases, delayed motor development or vision issues

Causes & Diagnosis

Unicoronal synostosis is usually nonsyndromic, meaning it occurs on its own. However, genetic syndromes like Crouzon or Saethre-Chotzen may also include this condition.

Diagnosis involves

  • Physical examination of head shape and facial symmetry

  • CT scan with 3D reconstruction to confirm suture fusion

  • Genetic evaluation, if a syndromic cause is suspected

Expected Outcomes

  • With early and expert intervention, most children achieve excellent cosmetic and functional results. Ongoing developmental monitoring ensures any related issues are addressed promptly.

Why Choose Us

for Unicoronal Synostosis Care?

  • Multidisciplinary team of craniofacial surgeons, pediatric neurosurgeons, and geneticists

  • Advanced diagnostic imaging and surgical planning tools

  • Minimally invasive and open surgical options

  • Family-focused care and long-term follow-up

Treatment depends on the Type and Severity

Cranial Vault Remodeling Surgery

Surgical correction is typically recommended between 6 to 12 months of age, while the bones are still malleable. The goal is to :

  • Reshape the skull and eye socket

  • Restore facial symmetry

  • Prevent increased intracranial pressure

Endoscopic Surgery

(Minimally Invasive)

  • In selected early cases (before 6 months), endoscopic-assisted surgery followed by helmet therapy may be an option.

Book a Consultation

Noticing an uneven forehead or facial asymmetry in your baby? Early diagnosis makes all the difference.Contact our craniofacial experts today for a comprehensive evaluation and treatment plan.

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