Editorial
Copyright ©2011 Baishideng Publishing Group Co., Limited. All rights reserved.
World J Orthop. Dec 18, 2011; 2(12): 107-115
Published online Dec 18, 2011. doi: 10.5312/wjo.v2.i12.107
Classification criteria for spondyloarthropathies
Ozgur Akgul, Salih Ozgocmen
Ozgur Akgul, Salih Ozgocmen, Division of Rheumatology, Department of Physical Medicine and Rehabilitation, Erciyes University, Gevher Nesibe Hospital, 38039 Kayseri, Turkey
Author contributions: Akgul O and Ozgocmen S collectively reviewed the literature and drafted the manuscript.
Correspondence to: Salih Ozgocmen, Professor, Division of Rheumatology, Department of Physical Medicine and Rehabilitation, Erciyes University, Gevher Nesibe Hospital, FTR AD, Romatoloji BD, 38039 Kayseri, Turkey. sozgocmen@hotmail.com
Telephone: +90-352-4374901 Fax: +90-352-2353605
Received: July 29, 2011
Revised: October 20, 2011
Accepted: November 29, 2011
Published online: December 18, 2011
Abstract

Spondyloarthropathies (SpA) are a group of inflammatory arthritis which consist of ankylosing spondylitis (AS), reactive arthritis, arthritis/spondylitis associated with psoriasis (PsA), and arthritis/spondylitis associated with inflammatory bowel diseases. It is now more important than ever to diagnose and treat SpA early. New therapeutic agents including blockers of tumor necrosis factor have yielded tremendous responses not only in advanced disease but also in the early stages of the disease. Sacroiliitis on conventional radiography is the result of structural changes which may appear late in the disease process. However, magnetic resonance imaging (MRI) can visualize active inflammation at sacroiliac joints and spine in recent onset disease. The modified New York criteria, the European Spondyloarthropathy Study Group criteria and the Amor criteria do not include advanced imaging techniques like MRI which is very sensitive to the early Inflammatory changes. Assessment of SpondyloArthritis international Society has defined MRI methods for the assessment of sacroiliac joints and spine, criteria for inflammatory back pain and developed new criteria for classification of axial and peripheral spondyloarthritis. These new criteria are intended to be used for patients with SpA at the very early stage of their disease. Also, classification of psoriatic arthritis study group developed criteria for the classification of PsA. The widespread use of these criteria in clinical trials will provide evidence for a better definition of early disease and recognize many patients who may further develop classical AS or PsA. These efforts will guide therapeutic trials of potent drugs like biological agents in the early stage of these diseases.

Keywords: Classification criteria; Spondyloarthritis; Psoriatic arthritis; Ankylosing spondylitis