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Int J Artif Organs. 2011 Sep;34(9):781-8. doi: 10.5301/ijao.5000052.

Emerging pathogenetic mechanisms of the implant-related osteomyelitis by Staphylococcus aureus.

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Research Unit on Implant Infections, Rizzoli Orthopaedic Institute, Bologna, Italy.


Implant-related osteomyelitis is a severe and deep infection of bone that arises and develops all around an implant. Staphylococcus aureus is the first cause of osteomyelitis, whether implant-related or not. Bone is an optimal substratum for S. aureus, since this bacterium expresses various adhesins by which can adhere to bone proteins and to the biomaterial surfaces coated with the proteins of the host extracellular matrix. S. aureus is able not only to colonize bone tissues, but also to invade and disrupt them by entering bone cells and inducing cell death and osteolysis. Here we illustrate the pathogenetic mechanisms that can explain how the osteomyelitis sets in and develops around an implant.

[Indexed for MEDLINE]

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