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CT - technique
CT - sacroiliitis
CT - spinal changes
CT - surgery planning
CT - guided therapy
CT for diagnosing spinal changes

The main indication for CT of the spine is to confirm or dismiss suspicion of fracture e.g. in an ankylosed deformed patient, which can be difficult by radiography.


The images show a fracture which could not be detected with certainty by radiography (top left image), but is seen at 2D CT reconstructions (top right image) and 3D surface or transparent reconstructions (arrows) as a break in the otherwise bridging syndesmophytes. Such a fracture is instable and needs treatment. Surgical stabilisation is often necessary succeeded by radiography to confirm that the spine is properly stabilised (bottom right image).

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