Chronic PJIs Clinical Trial
Official title:
Evaluation of the microDTTect Device (Heraeus) in the Diagnosis of Low-grade Chronic
Prosthetic joint infections (PJIs) are one of the main causes of implant failure after joint
arthroplasty. Identification of the causal organism is crucial for successful treatment.
However, microbiological diagnosis of PJIs remains a challenge notably because bacteria are
embedded in biofilm adhered to the material. Recently, dithiothreitol (DTT) treatment of
prosthesis has been proposed as a new strategy to dislodge bacteria from biofilm, thus
becoming an alternative to sonication to improve the yield of the microbiological diagnosis.
In this study, the investigators evaluate the interest of a commercial device using DTT, the
MicroDTTect system (Heraeus, Hanau, Allemagne), for the diagnosis of low-grade chronic PJIs
compared to the conventional culture of periprosthetic tissue (PPT) samples.
Prosthetic joint infections (PJIs) are one of the main causes of implant failure after joint
arthroplasty. Identification of the causal organism is crucial for successful treatment.
However, microbiological diagnosis of PJIs remains a challenge notably because bacteria are
embedded in biofilm adhered to the material. Recently, dithiothreitol (DTT) treatment of
prosthesis has been proposed as a new strategy to dislodge bacteria from biofilm, thus
becoming an alternative to sonication to improve the yield of the microbiological diagnosis.
In this study, the investigators evaluate the interest of a commercial device using DTT, the
MicroDTTect system (Heraeus, Hanau, Allemagne), for the diagnosis of low-grade chronic PJIs
compared to the conventional culture of periprosthetic tissue (PPT) samples.
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