DETAILED COCCYGEAL MORPHOLOGY ON MULTISLICE 3D CT IN 1000 ASYMPTOMATIC TURKISH ADULTS

Abstract

The morphology of the coccyx varies. This variety makes it difficult to understand the radiologic pathologies in idiopathic coccydynia. The study aimed to examine the morphology of the coccyx in Turkish society to create a set of societal reference values. Retrospective analysis of 1000 adult CT scans evaluated the following: number of coccygeal segments, type of coccyxes, sacrococcygeal and intercoccygeal joint fusion, coccygeal spicules, sacrococcygeal straight length, sacrococcygeal and intercoccygeal curvature angles and lateral deviation of the coccyx tip. The most common number of coccygeal segments was determined to be four, and the most common coccyx type was II. Sacrococcygeal fusion was observed in 69.5%, and intercoccygeal fusion in 83.6%. Coccygeal spicule was seen in 3.7% of the cases. The mean sacrococcygeal straight length was 34.3 mm in males and 32.2 mm in females; this length was also significantly higher in the male group (p