Anatomo-radiological importance and the incidence of os odontoideum in Turkish subjects: a retrospective study

ConclusionNeck pain was the most frequent symptom. The prevalence of os odontoideum especially round type is more frequent in older male patients over 40  years old with head and neck pain or atlantoaxial instability, and is less common in Turkish subjects when compared to various ethnic groups.
Source: Surgical and Radiologic Anatomy - Category: Anatomy Source Type: research