Radiological diagnosis of acetabular fractures

Acetabular fractures are caused by high kinetic energy, and satisfactory management requires differentiation of the fracture types. The basic radiological examinations consist of the A-P pelvic view, the obturator, and the iliac oblique view. Plain radiograhpy proves to be insufficient, particularly for visualization of the posterior column and the posterior acetabular lip. In comparison, axial CT scans give exact and complete information about the acetabular fracture and associated injuries. In summary CT is the method of choice in evaluating dislocated or non-dislocated fractures, even when two- and three-dimensional reformation is involved. (orig.)