ANKYLOSING SPONDYLITIS SPINE RADIOLOGY CT MRI FUSION

WHERE TO LOOK

There are 4 sites in the posterior spine to assess for changes of AS.

1. Facet Joints.
    
2. Interspinous Ligament.
    
3. Costovertebral joints.
    
4. Costo transverse joints.

Changes can be at 1 or more of these sites.

THE TAKE AWAY

• Spinal changes start anteriorly and progress posteriorly.

• All the examples are from chronic AS where bony fusion has occurred.

• But these are also the areas to look at on MRI for the earlier changes of enthesitis and inflammation.

ANKYLOSING SPONDYLITIS POSTERIOR SPINE CHANGES: WHERE TO LOOK

We look at all of these topics in more detail in our SPINE MRI Mini Fellowships.

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