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Related Concept Videos

Sutures of the Skull01:22

Sutures of the Skull

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...
Cranial Bones: Superior and Posterior View01:14

Cranial Bones: Superior and Posterior View

The superior view of the cranium shows the frontal and paired parietal bones.
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
Cranial Bones: Lateral View01:27

Cranial Bones: Lateral View

The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
Overview of the Skull01:08

Overview of the Skull

The cranium (skull) is the skeletal structure of the head that supports the face and protects the brain. It is subdivided into the facial bones and the brain case, or cranial vault. The facial bones underlie the facial structures, form the nasal cavity, enclose the eyeballs, and support the teeth of the upper and lower jaws.
The cranial vault surrounds and protects the brain and houses the middle and inner ear structures. This cavity is bounded superiorly by the rounded top of the skull, which...
Classification of Bones01:18

Classification of Bones

The bones of the human skeletal system are of varied shapes, sizes, and functions. They can be classified based on their shape and function into four major classes: long bones, short bones, flat bones, and irregular bones. Some classifications include a fifth type, the sesamoid bones, as a separate class, whereas others categorize them under short bones.
Long and Short Bones
The appendicular skeleton, particularly the upper and lower limbs, is primarily made of long and short bones. The long...
Cranial and Spinal Meninges01:19

Cranial and Spinal Meninges

The cranial and spinal meninges are complex protective structures surrounding the central nervous system (CNS), consisting of the brain and spinal cord. These meninges consist of the dura mater, the arachnoid mater, and the pia mater. They protect the CNS, provide structural support, and aid in circulating cerebrospinal fluid (CSF).
Cranial Meninges
These meningeal layers cover the cranium. The dura mater is the outermost layer of cranial meninges. It is a thick and durable membrane of dense...

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Updated: Jun 24, 2026

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
08:03

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model

Published on: November 4, 2025

Classification system for sagittal craniosynostosis.

Lisa David1, Steven Glazier, Jeremy Pyle

  • 1Department of Plastic and Reconstructive Surgery, Wake Forest University Medical Center, Medical Center Blvd, Winston-Salem, NC 27157, USA. ldavid@wfubmc.edu

The Journal of Craniofacial Surgery
|March 28, 2009
PubMed
Summary
This summary is machine-generated.

Scaphocephaly, caused by premature sagittal suture fusion, can now be classified into anterior, central, posterior, or complex types based on CT scans. This classification aids in understanding varied presentations and personalizing surgical treatment for better outcomes.

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Area of Science:

  • Craniofacial Surgery
  • Pediatric Neurosurgery
  • Medical Imaging

Background:

  • Scaphocephaly, resulting from premature sagittal suture fusion, is not fully understood.
  • Varied presentations complicate diagnosis and treatment planning.

Purpose of the Study:

  • To utilize 3D CT scans to identify defining characteristics of scaphocephaly.
  • To develop a classification system for scaphocephaly based on dominant physical traits and fusion sites.

Main Methods:

  • Retrospective analysis of 76 patients with CT-diagnosed isolated single-suture sagittal craniosynostosis.
  • Stratification into anterior, central, posterior, or complex subtypes based on CT findings.
  • Classification determined by dominant physical characteristics like retrocoronal bands, sagittal ridges, or occipital prominence.

Main Results:

  • Anterior, central, and posterior types were identified in 48 patients.
  • Complex type, lacking a single dominant feature, was observed in 13% (N=7) of patients.
  • Incidence and prevalence: Anterior (13/24%), Central (16/29%), Posterior (19/35%), Complex (7/13%).

Conclusions:

  • Heterogeneous fusion points likely cause the diverse scaphocephaly presentations.
  • The proposed classification system may enable individualized surgical interventions for optimized clinical outcomes.