Biofilm development by clinical isolates of Staphylococcus spp. from retrieved orthopedic prostheses

Authors

  • Jaime Esteban
  • Diana Molina-Manso
  • Iris Spiliopoulou
  • José Cordero-Ampuero
  • Ricardo Fernández-Roblas
  • Antigoni Foka
  • Enrique Gómez-Barrena

DOI:

https://doi.org/10.3109/17453674.2010.537810

Abstract

Background Biofilms are considered the key factor in the development of implant-related infections. However, only a few reports have dealt with the ability of organisms isolated from such infections to develop biofilms in vitro. Methods We evaluated different phenotypic techniques (2 microtiter plate assays and confocal laser scanning microscopy (CLSM) and genotypic techniques (detection of the ica operon) related to biofilm development by clinical isolates of Staphylococcus spp. Results All 26 strains tested (from 23 specimens) were biofilm producers. Stepanovic test detected biofilm formation in 85% of the strains, microtiter plate assay in 65%, and CLSM in 39%. The ica operon was detected in 73% of all strains (all 13 S. aureus strains and 6 of the 13 coagulase-negative Staphylococcus strains). 7 ica-negative strains were biofilm-positive by phenotypic methods. Interpretation The detection of ica genes could not be related to the phenotypic ability of the strains to develop a biofilm in vitro, so both studies (genetic and phenotypic) are required for a better evaluation of the biofilm-producing ability of clinical strains of Staphylococcus isolated from orthopedic infections.

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Published

2010-12-01

How to Cite

Esteban, J., Molina-Manso, D., Spiliopoulou, I., Cordero-Ampuero, J., Fernández-Roblas, R., Foka, A., & Gómez-Barrena, E. (2010). Biofilm development by clinical isolates of Staphylococcus spp. from retrieved orthopedic prostheses. Acta Orthopaedica, 81(6), 674–679. https://doi.org/10.3109/17453674.2010.537810