Technology changes in new CT scanners have led to their increased use in Musculoskeletal Imaging, with CT now becoming the gold standard for many investigations

1. Trauma.

By assessing the area in question, in sagittal, coronal and occasionally oblique planes, all undisplaced fractures are now easily visible at CT scanning. In the past a nuclear bone scan was used to diagnose an occult fracture, but now CT scan is rapidly replacing this, as the anatomical detail is so good.

CT will also show small bone fragments very well, including intra-articular fragments as well as minor articular depression. CT is also valuable in following the progress of fracture healing. CT is of great value in assessing union or non-union.

Typical areas of value are the scaphoid, the talus as well as the knee and shoulder.

2. Degenerative Disease:

CT is superior to conventional x-ray in displaying the extent of degenerative disease, particularly joint space narrowing, osteophyte formation and subchondral sclerosis and cyst formation.

3. Tumour Assessment:

CT again provides a more detailed understanding of the extent of tumour spread. The diagnosis of fibrous dysplasia and osteoid osteoma are best made at CT scan.

Do not hesitate to call to discuss any patient where CT may be of benefit.

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