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Cranial Bones: Lateral View01:27

Cranial Bones: Lateral View

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

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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,...
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Sutures of the Skull01:22

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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.
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Combined Dynamic Osteotomies for Craniosynostosis.

Vera Lúcia N Cardim1, Geórgia M C Peres1, Alessandra Dos S Silva1

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Dynamic osteotomy, a novel surgical approach using springs and the nautilus technique, effectively treats craniosynostosis by promoting bone expansion and remodeling. This method ensures stable cranial vault development throughout a patient's growth.

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Area of Science:

  • Craniofacial Surgery
  • Pediatric Neurosurgery
  • Orthopedic Surgery

Background:

  • Primary craniosynostosis involves premature suture fusion, hindering brain growth and causing skull deformation.
  • Compensatory growth of unaffected sutures exacerbates skull deformities.
  • Addressing the osteogenic matrix is key to treating craniosynostosis.

Purpose of the Study:

  • To introduce and evaluate dynamic osteotomy as a novel surgical concept for craniosynostosis.
  • To assess the efficacy of springs and helicoid osteotomy (nautilus technique) in bone expansion and remodeling.

Main Methods:

  • A case series of craniosynostosis patients treated between July 2004 and January 2020.
  • Utilized dynamic osteotomy with springs and helicoid osteotomy (nautilus technique).
  • Single-center study conducted in Brazil.

Main Results:

  • Dynamic osteotomy facilitated stable osseous remodeling during the growth period.
  • Maintained the vitality and continuity of the osteotomized cranial vault.
  • Achieved efficient bone expansion and remodeling.

Conclusions:

  • Dynamic osteotomy, with or without the nautilus technique, is a successful treatment for craniosynostosis.
  • The treatment is effective regardless of patient age.
  • This approach promotes long-term cranial vault stability and development.