Objective We sought to examine anatomic variations of the atlas and the clinical significance
of these variations. Methods We retrospectively reviewed 1029 cervical 3-dimensional (3D) …

Background Occipitalisation is the most prevalent congenital abnormality at the
craniovertebral junction; however, it is rare in the general population. There is a paucity of …

Objective To study the craniovertebral junction and determine the anatomic characteristics of
occipitalization of the atlas (OC) by computed tomography (CT) imaging. Methods We …

Objective Occipitalization of the atlas (OA) often is associated with atlantoaxial dislocation
and basilar invagination. The purpose of this study is to determine the biomechanical …

Purpose Our study highlights the morphometry of the partial and complete atlas
occipitalization (AOZ), its coexistence with fusions of the 2nd and 3rd cervical vertebrae and …

Objectives: Surgical approaches to the craniovertebral junction (CVJ) are associated with a
high mortality and morbidity when undertaken without detailed morphologic analysis of the …

Objective To study the incidence of congenital posterior arch defects of the atlas and in
combination with other congenital variations in the Chinese population. Methods We …

Klippel-Feil syndrome is an uncommon anomaly that may be asymptomatic. Early clinical
signs such as restricted neck motion or short neck can be subtle and incorrectly treated as …

Atlas occipitalization (AO) is a spinal anomaly, characterized by the fusion of the first cervical
vertebra and occipital bone, with a complex etiology that can arise from congenital and …

In England, the 18th and 19th centuries marked an increase in urban living and the
development of industrialisation. The movement of large numbers of individuals into newly …