Clinical Trials Study
Copyright ©The Author(s) 2022.
World J Orthop. Feb 18, 2022; 13(2): 150-159
Published online Feb 18, 2022. doi: 10.5312/wjo.v13.i2.150
Table 1 Criteria for diagnosis of periprosthetic joint infection according to the Musculoskeletal Infection Society Workgroup[15]
PJI exists when
(1) There is a sinus tract communicating with the prosthesis; or (2) A pathogen is isolated by culture from at least two separate tissue or fluid samples obtained from the affected prosthetic joint; or (3) Four of the following six criteria exist: (a) Elevated serum erythrocyte sedimentation rate (ESR) and serum C-reactive protein (CRP) concentration; (b) Elevated synovial leukocyte count; (c) Elevated synovial neutrophil percentage (PMN%); (d) Presence of purulence in the affected joint; (e) Isolation of a microorganism in one culture of periprosthetic tissue or fluid; or (f) Greater than five neutrophils per high-power field in five high-power fields observed from histologic analysis of periprosthetic tissue at 9400 magnification.