title: Radiologic case. Clinics in diagnostic imaging (1). Ankylosing spondylitis with complication of pseudoarthrosis.
abstract: A 41-year-old Chinese woman with quiescent ankylosing spondylitis presented with increasingly severe, recurrent back pain. The thoracolumbar junction was focally tender on palpation. Radiographs and computerised tomography demonstrated T12/L1 pseudoarthrosis. Excision of pseudoarthrosis, followed by anterior and posterior spinal fusion were performed with good results. The clinical features, pathogenesis, and management of this complication are discussed. Imaging of pseudoarthrosis in ankylosing spondylitis is emphasized.
authors.affiliation: Department of Diagnostic Radiology, University of Hong Kong, Queen Mary Hospital & Duchess of Kent Hospital.
authors.forename: W C
authors.initials: WC
authors.lastname: Peh
authors.forename: K D
authors.initials: KD
authors.lastname: Luk
mesh_terms: D000328:Adult; D001416:Back Pain / Q000209:etiology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D011542:Pseudarthrosis / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery; D011859:Radiography; D012008:Recurrence; D013123:Spinal Fusion; D013167:Spondylitis, Ankylosing / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery