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How Does Diploic Space Thickness Change With Age?

Jesse E Menville1, Nidhi Shinde1, Scott Collins2

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|January 10, 2025
PubMed
Summary
This summary is machine-generated.

Cranial diploic thickness is stable with age, though density increases, indicating bone changes. These findings are crucial for successful autogenous calvarial graft harvesting in cranial reconstruction.

Keywords:
Diploediploic densitydiploic spaceskull thickness

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Area of Science:

  • Anatomy
  • Radiology
  • Biomedical Engineering

Background:

  • Cranial defects necessitate precise reconstruction for vault integrity.
  • Autogenous calvarial grafts are ideal but depend on diploic space development.
  • Limited data exists on adult diploic thickness changes.

Purpose of the Study:

  • Quantify age-related changes in diploic thickness and density.
  • Utilize computed tomography (CT) imaging for analysis.
  • Investigate sex-based differences in these changes.

Main Methods:

  • Retrospective review of 110 patients (ages 10-109) from CT scans.
  • Standardized 3D Slicer segmentation to isolate diploic space.
  • Linear regression models assessed age and sex effects on thickness.

Main Results:

  • No significant age trend in overall diploic thickness (P=0.50).
  • A trend of decreasing thickness with age noted in men (P=0.05), not women (P=0.42).
  • Diploic density significantly increased with age (P=0.002), indicating ossification.

Conclusions:

  • Diploic thickness is stable throughout adulthood, with minor sex differences.
  • Diploic density increases with age, suggesting altered cancellous architecture.
  • Individual anatomical variations are key for optimizing cranial graft outcomes.