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Related Concept Videos

Sutures of the Skull01:22

Sutures of the Skull

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The human skull is composed of several bones that come together to protect the brain and support the structures of the face. The junctions where these bones meet are called sutures.
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
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The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
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The superior view of the cranium shows the frontal and paired parietal bones.
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Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
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Related Experiment Video

Updated: Mar 19, 2026

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
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Comparison Between Two Different Isolated Craniosynostosis Techniques: Does It Affect Cranial Bone Growth?

Khalid Arab1, Sara Fischer, Madiha Bahtti-Softeland

  • 1*Craniofacial Unit, Department of Plastic Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden †Plastic Surgery Unit, King Saud University, King Khalid University Hospital, Riyadh, Saudi Arabia.

The Journal of Craniofacial Surgery
|June 18, 2016
PubMed
Summary

Cranioplasty for craniosynostosis may restrict cranial growth, leading to reduced intracranial volume (ICV) long-term. This study found significant ICV reduction in metopic synostosis patients and some sagittal synostosis patients post-surgery.

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Area of Science:

  • Neurosurgery
  • Pediatric Surgery
  • Craniofacial Surgery

Background:

  • Craniosynostosis involves premature closure of cranial sutures, necessitating cranioplasty to correct deformities and manage intracranial pressure.
  • While cranioplasty offers benefits, its impact on long-term cranial skeletal growth requires further investigation.

Purpose of the Study:

  • To evaluate the long-term effect of cranioplasty on intracranial volume (ICV) in patients with isolated metopic or sagittal synostosis.
  • To compare ICV changes between different surgical techniques and a control group.

Main Methods:

  • Retrospective case-control study of 185 patients with metopic or sagittal synostosis undergoing cranioplasty (2002-2012).
  • Computed tomography (CT) scans pre- and post-operatively (3 years) used for ICV measurement via MATLAB.
  • Comparison with 414 age- and sex-matched controls.

Main Results:

  • Statistically significant reduction in ICV observed in metopic synostosis patients post-surgery.
  • Significant ICV difference noted in sagittal synostosis patients treated with Pi-plasty, but not with strip craniotomy and springs.
  • 185 patients included pre-op, 160 post-op, compared to 414 controls.

Conclusions:

  • Extensive cranioplasties for craniosynostosis can result in minor but significant long-term growth restriction.
  • Reduced ICV is a notable outcome following surgical correction of metopic and sagittal synostosis.