Vertebral destruction at unfused segments in late ankylosing spondylitis.
D000328:Adult; D001174:Arthrodesis; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae; D008297:Male; D008875:Middle Aged; D011542:Pseudarthrosis / Q000000981:diagnostic imaging*; D011859:Radiography; D012598:Sclerosis; D013167:Spondylitis, Ankylosing / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D013904:Thoracic Vertebrae; D014054:Tomography