Two-Stage Revision TKA Is Associated with High Complication and Failure Rates

Table 4

Risk factors for failure: organisms.

	Fraction with failure, (%)	RR	95% CI	value
Streptococcus		3.18	2.13–4.72	<0.001
Yes	4/4 (100%)
No	17/54 (32%)
MSSA		1.26	0.63–2.53	0.510
Yes	8/19 (42%)
No	13/39 (33%)
MRSA		0.77	0.22–2.64	0.674
Yes	2/7 (29%)
No	19/51 (37%)
Coagulase negative Staphylococcus		0.88	0.42–1.84	0.737
Yes	7/21 (33%)
No	14/37 (38%)
Polymicrobial		3.31	2.19–5.00	<0.001
Yes	5/5 (100%)
No	16/53 (30%)