Journal
FOOT AND ANKLE SURGERY
Volume 28, Issue 7, Pages 1008-1013Publisher
ELSEVIER
DOI: 10.1016/j.fas.2022.02.010
Keywords
Infected ankle replacement; Total ankle arthroplasty; Bacteria; Treatment; Revision
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There is limited data on managing infected total ankle arthroplasty (TAA). This study compared the pathogens of ankle periprosthetic joint infection (PJI) to knee PJI and analyzed the long-term failure rates of different treatment options. The study found comparable pathogenesis between ankle and knee PJI, but standardized techniques for knee PJI have limitations for infected TAA.
Background: There is little valid data available on managing infected total ankle arthroplasty (TAA).Methods: A single-center, retrospective evaluation from 20 patients with PJI (periprosthetic joint infection) of the ankle compared the bacteria isolated by preoperative arthrocentesis and intraoperative cultures to the pathogens of knee PJI. Long-term failure rates of irrigation and debridement (I&D) and polyethylene exchange, revision arthroplasty, and arthrodesis were analyzed.Results: The most common bacteria were Staphylococcus aureus and Coagulase-negative staphylococci. There was no significant difference when comparing the causing pathogens of PJI of the ankle with the knee. After a follow-up of 50,4 months, the long-term failure rate after I&D and polyethylene exchange was 40%, and of revision was 9%.Conclusions: We concluded that the pathogenesis of PJI of the ankle and knee seems to be comparable. Regarding treatment options, we found that standardized techniques for PJIs of the knee have their lim-itations regarding infected TAA.(c) 2022 European Foot and Ankle Society. Published by Elsevier Ltd. All rights reserved.
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