Tiny probe to track antibiotics in knee joint after infection surgery

NCT ID NCT07299565

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study uses a technique called microdialysis to measure antibiotic levels inside the knee joint after surgery for a knee replacement infection. Researchers will place a tiny probe in the joint to collect fluid samples during the hospital stay (about 14 days). They want to see how local antibiotic levels relate to infection recurrence and overall recovery over 12 months. The study involves 30 adults undergoing two-stage revision surgery for an infected knee replacement.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

antibiotic-containing cement spacer (gentamicin and vancomycin)

What this could lead to

If successful, this could help doctors better understand how antibiotics work in the joint after surgery, potentially leading to improved treatment protocols for knee infections.

What could go wrong

This is a small, early observational study with only 30 participants. It is not testing a new treatment, so it may not directly lead to better outcomes for patients.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

Infections periprosthetic joint infection

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • University Hospital Bonn

    RECRUITING

    Bonn, North Rhine-Westphalia, 53127, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••