Diagnostic Values of Biochemical Tests in Infected Hip Arthroplasty / 中华医院感染学杂志

ABSTRACT

OBJECTIVE To evaluate the diagnostic values of biochemical tests for infection before revision hip arthroplasty. METHODS One hundred and forty five cases with revision hip arthroplasty were reviewed.The diagnostic results of infected hip arthroplasty according to ESR,CRP and "gold standard" were compared. RESULTS ESR served as the diagnostic criterion of infected hip arthroplasty,its sensitivity,specificity,positive and negative predictive value,accuracy and Youden′s index were 57.89%,85.71%,37.93%,93.10%,20.00 and 0.44,respectively.CRP as the diagnostic criterion of infected hip arthroplasty,its sensitivity,specificity,positive and negative predictive value,accuracy and Youden′s index were 68.42%,88.89%,48.15%,94.92%,18.62 and 0.57,respectively. CONCLUSIONS Being routine tests before revision hip arthroplasty,ESR and CRP play a screening role in the diagnosis of infected hip arthroplasty and compliment each other so that the accuracy of diagnosis can be improved.