**6.2. Posterior column fracture**

Characterized by disruption of the ischial portion of the pelvis and fracture line usually extends through the sciatic buttress. The fracture line usually extends from obturator foramen to greater sciatic notch through weight bearing dome of the acetabulum. The iliac oblique view shows break in the ilioischial line and displaced articular cartilage along with posterior segment with an intact portion of roof, creating an image resembling a flying bird (Gull sign) [11]. In CT scan, fracture line will be seen in the posterior column in the coronal plane of axial section.
