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Craniocervical junction as a focus for craniofacial growth studies
1Institute of Dentistry, University of Arhus, Denmark.
Acta Odontologica Scandinavica
|June 1, 1995
Summary
The craniocervical junction supports the head and protects the spinal cord. Its atlas growth involves synchondroseal and appositional mechanisms, with links to skull base development and anomalies like cleft palate.
Area of Science:
- Anatomy
- Developmental Biology
- Biomechanics
Background:
- The craniocervical junction (CCJ) is crucial for head support and spinal cord protection.
- It comprises the atlantoaxial complex, with origins in the skull's occipital region.
- Understanding CCJ anatomy and growth is vital for diagnosing related anomalies.
Purpose of the Study:
- To review the gross anatomy, kinematics, and growth of the craniocervical junction.
- To examine the atlas's growth regulation and its integration with the skull base.
- To explore potential common etiologic factors for CCJ anomalies and conditions like cleft palate.
Main Methods:
- Literature review focusing on gross anatomy and kinematics of the CCJ.
- Analysis of studies on atlas growth mechanisms (synchondroseal and appositional).
- Examination of vertebral and cranial base anomalies and their developmental links.
Main Results:
- Horizontal atlas growth is regulated by synchondroseal growth; vertical growth by appositional growth.
- Ontogenetic integration between the skull base and CCJ is evident through associated anomalies.
- High frequency of atlantal posterior arch deficiency in cleft palate patients suggests common etiologies.
Conclusions:
- The atlas exhibits distinct growth patterns influencing CCJ development.
- CCJ anomalies are linked to skull base development, highlighting their integrated ontogeny.
- Further research into shared etiologic factors for CCJ and cleft palate anomalies is warranted.