Bamboo spine – seen in ankylosing spondylitis as a result of…

Bamboo spine – seen in ankylosing spondylitis as a result of vertebral body fusion by syndesmophytes and often fusion of the posterior elements as well. It predisposes to unstable spinal fractures and inflammatory intervertebral disc lesions known as Anderson lesions. Another plain radiograph sign of ankylosing spondylitis is the dagger sign where the spinous processes are fused.  

from our tumblr blog

http://radiologysigns.tumblr.com/

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