• André E Bussières, John A M Taylor, and Cynthia Peterson.
• Chiropractic Department, Université du Québec à Trois-Rivières, Québec, Canada. andre.bussieres@uqtr.ca
• J Manipulative Physiol Ther. 2007 Nov 1; 30 (9): 684-717.

PurposeThe aim of this study was to develop evidence-based diagnostic imaging practice guidelines to assist chiropractors and other primary care providers in decision making for the appropriate use of diagnostic imaging of lower extremity disorders.MethodsA comprehensive search of the English and French language literature was conducted using a combination of subject headings and keywords. The quality of the citations was assessed using the Quality of Diagnostic Accuracy Studies (QUADAS), the Appraisal of Guidelines Research and Evaluation (AGREE), and the Stroke Prevention and Educational Awareness Diffusion (SPREAD) evaluation tools. The Referral Guidelines for Imaging (Radiation Protection 118) coordinated by the European Commission served as the initial template. The first draft was sent for external review. A Delphi panel composed of international experts on the topic of musculoskeletal disorders in chiropractic radiology, clinical sciences, and research were invited to review and propose recommendations on the indications for diagnostic imaging. The guidelines were pilot tested and peer reviewed by field chiropractors, and by chiropractic and medical specialists. Recommendations were graded according to the strength of the evidence.ResultsRecommendations for diagnostic imaging guidelines of adult lower extremity disorders are provided, supported by more than 174 primary and secondary citations. Except for trauma, the overall quality of available literature is low. On average, 57 Delphi panelists completed 1 of 2 rounds, reaching more than 83% agreement on all 56 recommendations. Peer review by specialists reflected high levels of agreement, perceived ease of use of guidelines, and implementation feasibility.ConclusionsThe guidelines are intended to be used in conjunction with sound clinical judgment and experience and should be updated regularly. Dissemination and implementation strategies are discussed. Future research is needed to validate their content.

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