[Computed tomography of the hip joint].

Computed tomography through the hip joint should be used only after conventional radiographs (at least a.p. views). It may provide information that is diagnostic or helpful, eg. in bacterial infections, trauma or praearthrotic states. Indications for surgery may be obtained in the presence of inflammatory-rheumatic and degenerative hip disease, arthritic deformities and trauma, and the type of suitable operation may be indicated. The obturator internus muscle, which can be seen medial to the acetabulum on the scan, is an important diagnostic indicator where there is trauma or bacterial infection of the hip joint. The capsule of the hip joint can be visualized directly. Slice thickness of 6 mm. or less is necessary.