Scientific-practical conference «Primary knee joint endoprosthesis replacement: choice of endoprosthesis coherence, special aspects of knee joint endoprosthesis replacement with conservation of back crucial ligament» took place in RCH. Traumatologists-orthopedists of RCH, MCH №7, EH, NCRMH, MCH №12, MS of "Tatneft" and Almetyevsk, and employees of research department of Republican Clinical Hospital took part in the conference.