Methods and Materials: The material collected from 8/2005 to 10/2006 at the Orthopedic Surgery Department of Chợ Rẫy hospital, there were 30 cases of acetabular fracture dealt with surgery, 3 of them come late after 3 - 6 months.. As for diagnosis, besides the clinical findings and conventional X-ray, we had 25 cases (83%) taken multi-slices.