Treatment Failure Among Infected Periprosthetic Patients at a Highly Specialized Revision TKA Referral Practice

Table 4: Association Between Patients’ age, BMI, and Joint Fluid Markers, with 2nd Stage Revision Outcome

Variable	2nd Stage Success		2nd Stage Failure		p-Value
Variable	N	Median (Range)	N	Median (Range)	p-Value
Age	53	67.8 (41.4-90.1)	22	69.9 (43.5-85.7)	.50*
BMI	27	30.7 (22.6-48.9)	17	33.7 (23.5-59.1)	.33**
ESR at reimplantation	48	47.5 (4.0-124.0)	19	64.0 (13.0-107.0)	.09**
CRP at reimplantation	50	11.0 (0.4-251.0)	19	14.8 (1.0-193.1)	.06**
WBC at reimplantation	41	19,000 (9-132,000)	12	25,600 (260-99,600)	.37**
PMN (%) at reimplantation	41	86 (2-99)	12	91.5 (16-96)	.27**

^* t-test.

^** Wilcoxon test.