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©2013 UpToDate ® Print Email Bamboo spine in AS Radiograph of the lumbar sacral spine in a patient with advanced ankylosing spondylitis showing a "bamboo spine" with vertebral fusion (arrows). Courtesy of Craig W Wiesenhutter, MD.
©2013 UpToDate ® Print Email Bamboo spine in AS Radiograph of the lumbar sacral spine in a patient with advanced ankylosing spondylitis showing a "bamboo spine" with vertebral fusion (arrows). Courtesy of Craig W Wiesenhutter, MD. Fusion of sacroiliac joints in AS Ankylosis of the sacroiliac joint in advanced ankylosing spondylitis with complete obliteration of the joint space. Courtesy of Craig W Wiesenhutter, MD.