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These graphs show the mean colony forming unit counts of cultures derived from surgical-site samples contaminated with S. aureus and irrigated with 300 mL of EDTA solution, normal saline, benzalkonium chloride, or povidone iodine in (A) bone, (B) K-wire, and (C) the joint capsule in this rat model. Error bars indicate the SD. aHigher colony counts than for EDTA (p < 0.05).
