This is a plain-English translation of the academic paper above, prepared for patients, referring clinicians, and other non-specialist readers. It preserves the structure of the original paper while removing technical jargon. For the full clinical paper, follow the PubMed or DOI links.
Background
An international panel of foot and ankle surgeons sat down to agree a single, clear set of steps for diagnosing infection in an artificial ankle joint. We didn’t run a new experiment — we reviewed all the available evidence and reached consensus on the right way to investigate a painful or inflamed ankle replacement.
Rationale
When someone’s ankle replacement later becomes painful, swollen or red, the surgeon has to decide: is this an infection, or is it something else (loosening, instability, normal post-op change)? The treatments are very different. Until this consensus, surgeons in different hospitals were doing different things.
Recommendations
A step-by-step pathway. If there’s a draining sinus tract from the joint to the skin, that alone confirms infection. Without that, two blood tests (ESR and CRP) flag inflammation; if they’re raised, the joint is drained with a fine needle and the fluid sent to the lab. The same bacterium has to grow on at least two cultures before infection is confirmed. If the picture is still unclear and surgery isn’t urgently needed, nuclear imaging can help. If surgery is indicated anyway, examining the tissue and joint fluid during the operation gives the final answer.
Implications
If you’ve had an ankle replacement and you’re worried about infection, your surgeon should follow a defined, evidence-based pathway — not guess. This paper sets that standard. It’s reasonable to ask which step you’re at and what each test will tell you.
Source: Heidari N, Oh I, Malagelada F. What Is the Diagnostic “Algorithm” for Infected Total Ankle Arthroplasty (TAA)?. Foot & Ankle International 2019;40(1_suppl):21S–22S. doi:10.1177/1071100719859536
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