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Spondylitis Association of America Research Article Archive

Health research has high value to society. It can provide important information about disease trends and risk factors, outcomes of treatment, functional abilities, patterns of care, and health care costs and use. The different approaches to research provide complementary insights. Clinical trials can provide important information about the efficacy and adverse effects of medical interventions by controlling the variables that could impact the results of the study, but feedback from real-world clinical experience is also crucial for comparing and improving the use of drugs, vaccines, medical devices, and diagnostics.

Below you will find links to some of the studies that have contributed to our increased understanding of spondyloarthritis.

SAA receives no government funding and relies on the generous donations from individuals to create and maintain the programs and services aimed at improving the futures of the 2.7 million Americans affected by spondylitis.

Research Article Archive

Diagnosis and classification in spondyloarthritis: identifying a chameleon

Astrid van Tubergen and Ulrich Weber

Abstract

Spondyloarthritis (SpA) defines a group of interrelated diseases, including ankylosing spondylitis (AS), psoriatic arthritis, reactive arthritis, enteropathic-related spondylitis and arthritis, and undifferentiated SpA. The clinical presentation of SpA is heterogeneous, and no single shared distinguishing feature exists for the conditions comprising SpA; in daily practice, diagnosis is usually made on the basis of a combination of symptoms, the findings of physical examination, imaging and laboratory investigations. Several classification criteria have been developed for AS and SpA, which are useful in a research setting but cannot be automatically applied to the diagnosis of individual patients. Currently, MRI is the most sensitive imaging modality available for detection of sacroiliitis, often enabling detection of axial inflammation long before structural lesions are observed radiographically, thus facilitating early diagnosis of axial SpA. However, MRI will never capture all facets of SpA and the expert opinion of a rheumatologist will remain the crucial step in recognition of this disease. In this Review, we discuss diagnosis and classification of AS and SpA, and highlight how MRI might facilitate both processes.

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