‘To bead or not to bead?’ Treatment of osteomyelitis and prosthetic joint-associated infections with gentamicin bead chains
2011
Barth, Roos E. | Vogely, H Charles | Hoepelman, Andy I.M. | Peters, Edgar J.G.
Gentamicin-containing polymethylmethacrylate (PMMA) beads are frequently used to prevent and treat orthopaedic infections. The beads are typically inserted to fill anatomical defects secondary to surgical debridement. Local gentamicin use results in low serum levels whilst achieving high concentrations at the site of infection. However, a systematic review of the available literature showed that, despite these theoretical advantages, no prospective study has thus far proven gentamicin-containing PMMA beads to be effective in treating orthopaedic infections. Available studies are based on small patient numbers and do not show significantly better results when local and parenteral antibiotics are combined compared with systemic therapy alone. These poor results may be explained partially by reduced aminoglycoside efficacy when biofilms or gentamicin-resistant bacteria are present. Moreover, little is known regarding the potential side effects of gentamicin-containing beads. In this paper, the pros and cons regarding the use of gentamicin-containing PMMA beads are discussed. It is concluded that more well-executed, prospective studies are needed to settle the discussion on the use of gentamicin-containing beads in the treatment of orthopaedic infections.
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