Two-Stage Revision Total Hip Arthroplasty for Periprosthetic Infections Using Antibiotic-Impregnated Cement Spacers of Various Types and Materials

Table 2

Comparison of the possible prognostic factors of re-infection between the re-infection-positive and re-infection-negative groups after the second-stage revision surgery in 31 hips.

	Re-infection negative; (21 hips)	Re-infection positive; (10 hips)	𝑃 value
No. of previous operations	2.8±1.5	3.2±1.7	0.467
Use of an allograft	14/21 (66.7%)	5/10 (50.0%)	0.308
Infection by MRSA	6/21 (28.6%)	4/10 (40.0%)	0.405
PMMA cement spacer	4/21 (19.0%)	4/10 (40.0%)	0.208

MRSA: Methicillin-resistant Staphylococcus aureus.
PMMA: Polymethylmethacrylate.