Emergency histological examination in diagnosis of periprosthetic joint infection in revision total knee arthroplasty by Alexander N. Panteleev, Svetlana A. Bozhkova, Rashid M. Tikhilov, Alexander V. Kazemirsky, Larisa O. Anisimova, Svetlana A. Guzyukina, Petr M. Preobrazhensky, Maxim P. Zinoviev, Anatoly V. Ovsyankin, Vazha B. Nakopiya