We are pleased to publish the next installment of "Cochrane in CORR ® ", our partnership between CORR ® , The Cochrane Collaboration ® , and McMaster University's Evidence-Based Orthopaedics Group. In this column, researchers from McMaster University and other institutions will provide expert perspective on an abstract originally published in The Cochrane Library that we think is especially important. We welcome reader feedback on our editorials as we do on all of our columns and articles; please send your comments to