Rotem G, et al. - The present study was conducted to investigate the presence, prevalence, and characteristics of post-traumatic, inflammatory-like changes of the sacroiliac joint (SIJ) on pelvic computed tomography (CT). Researchers compared and analyzed sequential CT examinations from the acute (index) and follow-up post-traumatic periods of 24 patients that underwent pelvic trauma with SIJ involvement with 32 control individuals with pelvic fractures that did not involve the SIJs. The data showed that traumatic SIJ fracture or diastasis is correlated with the development of post-traumatic SIJ structural inflammatory-like lesions on pelvic CT, mimicking sacroiliitis. These data may be the result of focal, post-traumatic joint inflammation, which leads to mechanical rather than inflammatory symptoms.