Abstract
ObjectivePrevious studies have suggested that the diagnostic biomarkers of periprosthetic joint infection (PJI) are largely influenced by gender. In the present study, we aimed to evaluate the diagnostic value of traditional inflammatory biomarkers, fibrinolytic biomarkers (fibrinogen and D-dimer), and C-reactive protein (CRP)/albumin for PJI in different genders.MethodsA single-center retrospective analysis was performed on revision total hip or knee arthroplasty between June 2013 to June 2021, and the study included 80 patients in the PJI group and 136 patients in the non-PJI group. PJI was diagnosed based on the International Consensus Meeting (ICM) in 2018. The levels of CRP, fibrinogen, erythrocyte sedimentation rate (ESR), D-dimer, and albumin count were determined. Receiver operating characteristic (ROC) curves and Youden’s index were used to evaluate the diagnostic ability of various biomarkers.ResultsThe levels of CRP, fibrinogen, D-dimer, ESR, and CRP/albumin were significantly higher in the PJI group (P < 0.001). In PJI of females, the predictive value of CRP was the highest among the five biomarkers, with the area under the curve (AUC) of 0.98. The optimal predictive cut-off for CRP was 8.86 mg/L, with a sensitivity and specificity of 90.2% and 95.7%, respectively. When combined with the other four biomarkers, the AUC of CRP was 0.98, 0.99, 0.98, and 0.99, respectively. In PJI of males, the predictive value of ESR was the highest among the five biomarkers, with an AUC of 0.92. The optimal predictive cut-off for ESR was 14.50 mm/h, with a sensitivity and specificity of 84.6% and 86.6%, respectively. When combined with the other four biomarkers, the AUC of ESR was 0.95, 0.94, 0.93, and 0.97, respectively.ConclusionCRP and ESR were excellent biomarkers for diagnosing PJI in female and male patients, respectively, and their combined use with CPR/albumin could provide higher diagnostic value in different genders.
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