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Review Question - QID 213957

Prosthetic Joint Infection Studies Joint aspiration QID: 213957 (OBQ19.55)
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QID 213957 (Type "213957" in App Search)
A 70-year-old male presents 1-year status post total hip arthroplasty (THA) with 4 months of pain and stiffness. A laboratory workup reveals a normal white blood cell (WBC) count, and elevated C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR). A hip aspiration is performed, and synovial analysis reveals: 2800 WBC cells/uL, polymorphonuclear leukocyte (PMN%) 55%, positive leukocyte esterase (LE) and a positive alpha defensin test. What is the single most accurate predictor of chronic periprosthetic joint infection (PJI) in this patient?
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