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Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_4 | Pages 129 - 129
1 Feb 2017
Lyons S Leary J Broach W Shaw L Santoni B Bernasek T
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Background

Periprosthetic joint infection (PJI) is a devastating complication and interest exists in finding lower cost alternatives to current management strategies. Current strategies include a two-stage revision with placement of an antibiotic spacer and delayed placement of a new arthroplasty implant. This study aimed to show that biofilm residue can be reliably eradicated on infected implants, safely allowing re-implantation in a spacer.

Methods

Strains of Staphylococcus aureus MRSA252 or Staphylococcus epidermidis RP62A were grown on cobalt-chrome discs. For each strain, discs were divided into 5 groups (5 discs each) and exposed to several sterilization and biofilm eradication treatments: (1) autoclave, (2) autoclave + sonication; (3) autoclave + saline scrub; (4) autoclave + 4% chlorhexidine (CHC) scrub; and (5) autoclave + sonication + CHC scrub. Sterilization and biofilm eradication were quantified with crystal violet assays and scanning electron microscopy (SEM).