CRP and juvenile polyposis syndrome: With the numbers available, serum CRP ≥ 10 mg/l, , previous history of PJI, elevation of leukocyte count ≥ 1700 μl, or PMN ≥ 65% in the joint aspirate were not correlated with the diagnosis of PJIin the open biopsy (p = 0.16; p = 0.31; p = 0.94; p = 0.84 Cramer V test).