The Lyon School of Knee Surgery was founded in 1969 by Albert Trillat. The goal was to encourage research in the orthopaedic field and to give its members the possibility to acquire and share their knowledge through courses, conferences and congresses. A true believer in this concept, Henri Dejour and his students have kept this association alive allowing the Journées Lyonnaises de Chirurgie du Genou to be held regularly. This event is alternately devoted to degenerative issues, degenerative knee, patellofemoral joint or meniscal/ligament pathology. Currently, our organisation is made up of orthopaedic surgeons who come from the same medical school but who work either in a university structure or a private structure. The correlation of these two different activities is extremely rewarding and forces one to permanently ask oneself questions and reconsider options which is essential in making progress. This site has been created to improve our exchanges in the orthopaedic world, in keeping with what we have already developed with the Journées Lyonnaises.