Orthopaedic Academic Activity in the United States: Bibliometric Analysis of Publications by City and State

Background: The purpose of this study was to conduct a bibliometric analysis of orthopaedic academic output in the United States. Methods: Publications based on city and state origin, corrected for population size, median household income, total number of surgeons, and the number of various subspecialties were evaluated. The 15 highest-ranked orthopaedic journals were audited from 2010 to 2014 and then subdivided into anatomic regions and 14 subspecialties. Results: A total of 8,100 articles were published during the study period. Most originated from New York, California, Pennsylvania, Massachusetts, and Minnesota. New York published the greatest number by city, followed by Philadelphia, Boston, Chicago, and Rochester. When adjusted for the number of publications per city, surgeons per population, publications per surgeon population, publications per population, and publications per median income per capita, Vail and New York led in two and Stanford in one of the metrics. Conclusions: New York was the leader for the total publications, greatest activity within subspecialties, and publications per surgeon/population and per median income/capita. Vail was the leader for publications/surgeon and population. The top four cities of New York, Philadelphia, Boston, and Chicago were responsible for 28% of the academic output over the 5-year study period.