The Preoperative Microbial Detection is No Prerequisite for the Indication of Septic Revision in Cases of Suspected Periprosthetic Joint Infection

Table 2

Preoperatively fulfilled (para)clinical signs in suspected hip and knee PJIs.

Preoperative (para-)clinical signs	Hip (n = 49)	Knee (n = 47)	P
Persistent CRP-value >1 mg/dl	35 of 49; (71.4%)	30 of 47; (63.8%)	.514
Loosening signs in the X-Ray,; especially early loosening in the first 5 years; (ranging from decent loosening to entire migration)	26 of 49; (53.0%)	13 of 47; (27.6%)	.013
Leucocytes count >1700/µl in joint aspiration; (Not determinable for every patient)	10 of 49; (20.4%)	12 of 47; (25.5%)	.631
Conspicuous history (PJI intervention in the past)	22 of 49 (45%)	28 of 47; (59%)	.160
≥ 1 clinical signs of an infection (redness, pain,; hyperthermia, swelling, loss of function)	49 of 49; (100%)	47 of 47; (100%)	-

not available for each patient.