The choice of a spacer at the first stage of treatment for late deep periprosthetic hip joint infection by Stanislav A. Linnik, Gennady E. Afinogenov, Anna G. Afinogenova, Guram E. Kvinikadze, Dmitry V. Kravtsov, Nikolai M. Kliushin, Dmitry Yu. Maday, Valeriy M. Khaidarov, Giorgi Karagezov, Alimbek A. Vorokov