Journal of Bone and Joint Infection
Journal of Bone and Joint Infection
JBJI
Articles | Volume 11, issue 1
Articles | Volume 11, issue 1
https://doi.org/10.5194/jbji-11-15-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jbji-11-15-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 1
Brief report
 | 
12 Jan 2026
Brief report |  | 12 Jan 2026

Synovial fluid specific gravity as an inexpensive point-of-care test for diagnosing hip and knee periprosthetic joint infection

Sujeesh Sebastian, Hibah A. Abusulaiman, Veronika Achatz, Matteo Spadini, Jennyfer A. Mitterer, Sebastian Simon, and Jochen G. Hofstaetter

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Short summary
A simple, rapid, and low-cost test measuring synovial fluid specific gravity shows high accuracy and excellent specificity for diagnosing hip and knee periprosthetic joint infection. This method can quickly help rule in infections during revision surgeries, making it a practical point-of-care tool, especially in clinics or hospitals with limited resources. Its performance supports use alongside established lab markers for better patient outcomes.
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