TITLE:
Foramen Magnum Orientation and Its Association with Cervical Lordosis: A Model for Reconstructing Cervical Curvature in Archeological and Extinct Hominin Specimens
AUTHORS:
Ella Been, Sara Shefi, Lisa Raviv Zilka, Michalle Soudack
KEYWORDS:
Posture, Cervical Spine, Radiology, Basicranium
JOURNAL NAME:
Advances in Anthropology,
Vol.4 No.3,
August
20,
2014
ABSTRACT: The
cranial base is located at a critical intersection between the vertebral spine,
the brain, the respiratory system and the mastication apparatus. Therefore it
can provide an insight into the evolution of the head and neck in functional
and phylogenetic contexts. However, the relationship between cranial base
anatomy and cervical spine alignment has not been explored deeply. Therefore
the aim of this research is to study the relationship between the orientation
of the foramen magnum and the degree of cervical lordosis. Based on this
relationship we developed six models which enable reconstruction of the
cervical lordosis angle in archeological material and in extinct hominins. 74
adult lateral cervical radiographs were examined. The orientation of the
foramen magnum and the angle of the cervical lordosis were measured on each
radiograph. Foramen magnum orientation positively correlates with cervical
lordosis angles: moderate to high correlation was found between foramen magnum
orientation and the total cervical lordosis (0.716