The registry has proven to be a valuable tool for patient management (by triggering regular follow-up evaluation), as a means of providing quality assurance (by analyzing results of newly introduced techniques) and as an academic instrument for rigorous analysis of prospectively collected data (allowing reporting of successes and failures of surgical techniques, technologies and implants). Today, our employees are located at our three major campuses in Phoenix/Scottsdale, Arizona, Jacksonville, Florida, Rochester, Minnesota, and at Mayo Clinic Health System campuses throughout Midwestern communities, and at our international locations.