• Alexander Joeris, Marc Höglinger, Flurina Meier, Fabio Knöfler, Stefan Scholz, Urs Brügger, Eberhard Denk, Felix Gutzwiller, Joachim Prein, Nikolaus Renner, and Klaus Eichler.
• AO Foundation, Davos, Switzerland. Electronic address: alexander.joeris@aofoundation.org.
• Injury. 2019 Nov 1; 50 (11): 1868-1875.

ObjectivesSixty years ago, the Association of Osteosynthesis (AO) was founded with the aim to improve fracture treatment and has since grown into one of the largest medical associations worldwide. Aim of this study was to evaluate AO's impact on science, education, patient care and the MedTech business.Design/MethodsImpact evaluations were conducted as appropriate for the individual domains: Impact on science was measured by analyzing citation frequencies of publications promoted by AO. Impact on education was evaluated by analyzing the evolution of number and location of AO courses. Impact on patient care was evaluated with a health economic model analyzing cost changes and years of life gained through the introduction of osteosynthesis in 17 high-income countries (HICs). Impact on MedTech business was evaluated by analyzing sales data of AO-associated products.ResultsThirty-five AO papers and 2 major AO textbooks are cited at remarkable frequencies in high ranking journals with up to 2000 citations/year. The number of AO courses steadily increased with a total of 645'000 participants, 20'000 teaching days and 2'500 volunteer faculty members so far. The introduction of osteosynthesis saved at least 925 billion Swiss Francs [CHF] in the 17 HICs analyzed and had an impact on avoiding premature deaths comparable to the use of antihypertensive drugs. AO-associated products generated sales of 55 billion CHF.ConclusionAO's impact on science, education, patient care, and the MedTech business was significant because AO addressed hitherto unmet needs by combining activities that mutually enriched and reinforced each other.Copyright © 2019 The Author(s). Published by Elsevier Ltd.. All rights reserved.

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