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[The postnatal development of the frontal axial angle of the occipitoatlantal complex]

R Sacher1

  • 1Dortmund. Robby.Sacher@aol.com

Rofo : Fortschritte Auf Dem Gebiete Der Rontgenstrahlen Und Der Nuklearmedizin
|June 3, 2004
PubMed

Insights

The occipitoatlantal angle (C0/C1) is flatter in infants, differing from adult proportions. This distinct infantile morphology may aid adaptation to biomechanical stress during birth and development.

Area of Science:

  • Pediatric Radiology
  • Orthopedic Biomechanics
  • Craniovertebral Junction Anatomy

Background:

  • The frontal axial angle of the occipitoatlantal complex is established in adults.
  • Infantile cervical spine proportions differ, necessitating further study.
  • Understanding infantile biomechanics is crucial for diagnosing neonatal cervical spine conditions.

Purpose of the Study:

  • To investigate the postnatal development of the frontal axial angle (C0/C1).
  • To establish baseline radiological data for the infantile occipitoatlantal complex.
  • To inform the understanding of biomechanical adaptations in the newborn cervical spine.

Main Methods:

  • Analysis of 1016 anteroposterior radiographs of the upper cervical spine.
  • Inclusion of male and female patients aged 0-10 years.
  • Measurement of the occipitoatlantal angle (C0/C1).

Main Results:

  • The frontal axial angle (C0/C1) is significantly flatter in infants (153 degrees in newborns aged 0-3 months).
  • The angle gradually approaches adult values after the first decade of life.
  • This study illustrates the postnatal developmental trajectory of the C0/C1 angle.

Conclusions:

  • The flatter C0/C1 angle in newborns suggests a unique morphology adapted for biomechanical strain during labor.
  • This developmental morphology is key to understanding the biomechanics of the infantile upper cervical spine.
  • The findings provide essential data on the evolving occipitoatlantal complex in early life.
Abstract

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