Biparietal remodelling and total vault remodelling in scaphocephaly-a comparative study using 3d stereophotogrammetry

Area of Science:

• Craniofacial surgery
• Pediatric neurosurgery
• Plastic surgery

Background:

• Craniosynostosis is a premature fusion of cranial sutures, affecting skull shape.
• Isolated sagittal synostosis (ISS) results in scaphocephaly, a long, narrow head.
• Surgical correction aims to normalize skull morphology and relieve intracranial pressure.

Purpose of the Study:

• To compare the efficacy of two surgical techniques for isolated sagittal synostosis (ISS).
• To evaluate outcomes using 3D stereophotogrammetry.
• To assess aesthetic and morphological differences between Renier's "H" technique (RHT) and total vault remodeling (TVR).

Main Methods:

• A comparative study involving three groups: RHT, TVR, and a control group of normocephalic children.
• 3D stereophotogrammetry was used to capture cranial morphology in children aged 12-245 months.
• Six key measurements and indices, including the cranial index (CI), were analyzed to assess head shape.

Main Results:

• Both RHT and TVR demonstrated effectiveness in biparietal expansion and improving head height.
• Total vault remodeling (TVR) resulted in cranial index and sagittal length measurements closer to normocephaly compared to RHT.
• The direct remodeling of the frontal bossing was more effectively addressed by TVR.

Conclusions:

• Total vault remodeling (TVR) yields superior aesthetic results for isolated sagittal synostosis (ISS).
• The improved outcomes with TVR are primarily attributed to its direct surgical remodeling of the frontal bossing.
• Both techniques are effective for biparietal expansion, but TVR offers a more comprehensive aesthetic correction.