Traumatology and Orthopedics of RussiaTraumatology and Orthopedics of Russia2311-29052542-0933Vreden National Medical Research Center of Traumatology and Orthopedics118410.21823/2311-2905-2019-25-1-144-145Comment to the Article „Classifications of Acetabular Defects: Do They Provide an Objective Evidence for Complexity of Revision Hip Joint Arthroplasty? (Critical Literature Review and Own Cases)“SafirO.<span style="font-size: 11.0pt; line-height: 115%; font-family: 'Calibri','sans-serif'; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: Calibri; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 'Times New Roman'; mso-bidi-theme-font: minor-bidi; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">Toronto</span>olegsafir@gmail.comMount Sinai Hospital090520192511441450905201909052019Copyright © ,.