Underestimated Sacroiliac Joint Lesion on Computed Tomography in Pelvic Open-book Injury: A Case Report.

The classification of anteroposterior compression (APC) injury type is based on using static radiographs, stress radiographs are known as a useful adjunct in classifying type of APC pelvic injuries. According to a recent article, the intraoperative stress examination has led to a change in the treatment plan in more than 25% of patients on 22 patients presumed APC type I (symphyseal diastasis <2.5 cm) injuries. Here authors present a case demonstrating a necessity of intraoperative stress test for excluding concealed posterior ring disruption.