Journal of Bone and Joint Infection
Journal of Bone and Joint Infection
JBJI
Articles | Volume 11, issue 3
Articles | Volume 11, issue 3
https://doi.org/10.5194/jbji-11-323-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jbji-11-323-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 3
Original full-length article
 | 
04 Jun 2026
Original full-length article |  | 04 Jun 2026

High intra- and inter-observer reliability of the PJI-TNM classification in acute and chronic periprosthetic hip joint infection

Dominic Simon, Jonas Tumler, Lennart M. Schroeder, Florian Pachmann, Eduardo Suero, Boris M. Holzapfel, Gautier Beckers, and Kathrin Pfahl

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Short summary
This study assessed the reliability of the tumor, node, and metastasis (TNM) classification for periprosthetic joint infection (PJI) in patients with acute and chronic infections after hip replacement. Using a large clinical cohort, we found that clinicians with different levels of experience applied the system consistently. These findings support its use for describing disease severity, improving communication, and supporting future research and treatment planning.
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