Three-dimensional computed tomography in the assessment of fractures of the acetabulum.

Axial CT has, for many years, been shown to be superior to conventional radiology in the demonstration and assessment of acetabular fractures. The more recent development of complex computer programmes has enabled the production of three-dimensional images (3D CT) from sets of contiguous axial scans. 3D CT permits full imaging of the pelvis with the minimum of distress to the patient and with the minimum of radiation exposure. The ability to rotate the 3D images around a variety of axes provides a valuable perceptual link between conventional radiographs and axial CT, and enables the creation of unique images that offer perspectives unobtainable by conventional radiology. The improved visualization of the pelvis leads to more accurate diagnosis of the fracture, and hence better surgical planning and management.