title: Pseudoarthrosis complicating ankylosing spondylitis.
authors.forename: P N
authors.initials: PN
authors.lastname: Tyrrell
mesh_terms: D006801:Humans; D008279:Magnetic Resonance Imaging; D011542:Pseudarthrosis / Q000150:complications*; D013167:Spondylitis, Ankylosing / Q000150:complications*