The sources for this annual update on shoulder and elbow surgery were presentations and symposia at meetings of The American Orthopaedic Society for Sports Medicine (Specialty Day, February 26, 2005, Washington, DC), the Arthroscopy Association of North America (Specialty Day, February 26, 2005, Washington, DC; Twenty-fourth Annual Meeting, May 12-15, 2005, Vancouver, British Columbia, Canada; and Twenty-third Fall Course, December 2-4, 2004, Palm Desert, California), the American Academy of Orthopaedic Surgeons (Seventy-second Annual Meeting, February 23-27, 2005, Washington, DC), the Orthopaedic Research Society (Fifty-first Annual Meeting, February 20-23, 2005, Washington, DC), the American Shoulder and Elbow Surgeons (Twenty-first Open Meeting, Specialty Day, February 26, 2005, Washington, DC; and Twenty-first Annual Meeting, September 29-October 2, 2004, New York, NY) and the American Orthopaedic Association (118th Annual Meeting, June 22-25, 2005, Huntington Beach, California).