Alpha-Defensive as a Biomarker of Prosthetic Joint Infection

When investigating a periprostatic hip or knee joint infection, which marker is most sensitive and specific for infection? And the choices are one, alpha-defensive, two intraoperative frozen section, three serum interleukin-6 or IL-6, four C-reactive protein or CRP, and five leukosine estuaries cholometrics strip test. The other answers do not have higher sensitivity and specificity asalpha-defensive. A 65-year-old male presents with a painful right total knee arthroplasty 10 years ago. Kneespiration reveals a purelent fluid with 3,100 white blood cells with 83% PMNs