Abstract

Objective: This study aimed to determine the prevalence and distribution of sacroiliac joint (SIJ) variants based on age and sex using computed tomography (CT) and to investigate their clinical relevance.

Methods: This retrospective study analyzed pelvic and abdominal CT scans from 200 patients aged 18 years and older, focusing on SIJ variants. Variants were evaluated by two radiologists, and their associations with age and gender were assessed.

Results: SIJ variants were observed in 107 patients (53.5%), with a mean age of 38.65±22.29 years. The most common variant was the iliosacral complex (44.9%), followed by the accessory SIJ (27.1%). A significant association was identified between variant types and age groups (p=0.005), whereas no significant relationship was found with gender.

Conclusion: SIJ variants are prevalent and exhibit age-related differences. Awareness of these variants is essential to avoid misdiagnosis and ensure proper clinical management.