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Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_11 | Pages 37 - 37
1 Jul 2014
Molina-Manso D Del-Prado G Lucas-Diaz M Gómez-Barrena E Cordero-Ampuero J Esteban J
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Summary Statement

Combination of antibiotics with N-acetylcisteine and sub-MIC concentration of erythromycin was evaluated in two collection and 16 clinical strains of staphylococci isolated from PJI. The results were strain-dependent, so it evidences the necessity of perform individual studies of biofilm susceptibility.

Objectives

Staphylococci are the most common cause of prosthetic joint infections (PJI) (1), making the treatment of this disease difficult due to the increased resistance to antibiotics of biofilms. Combination between antibiotics and other compounds could be a good alternative. The aim of this study was to evaluate the effect of the combination of two compounds with nine antibiotics in biofilms formed by staphylococcal strains isolated from PJI.


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_11 | Pages 84 - 84
1 Jul 2014
Del-Prado G Pascual F Terriza A Molina-Manso D Yubero F Puertolas J Gomez-Barren E Esteban J
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Summary Statement

A study to evaluate biofilm development on different coatings of UHMWPE was performed. We observed a species-specific effect, with S. aureus affected mainly by DLC-F and S. epidermidis by DLC. These data correlates with previous adherence studies.

Introduction

Prosthetic joint infection is intimately related to bacterial biofilms on implant biomaterials. Recently, diamond-like carbon (DLC) coating has been suggested to improve the antibacterial performance of medical grade GUR1050 ultra high molecular weight polyethylene (UHMWPE) supplied by Orthoplastics bacup, UK versus collection and clinical staphylococcal strains. The aim of this study was to make an approximation towards the actual impact of such coatings in biofilm formation.