Arthroplasty Today - 2026-04-01 - Journal Article
Cerclage Wires Used for Extended Trochanteric Osteotomy Fixation During Two-Stage Revision Total Hip Arthroplasty for Periprosthetic Joint Infection Are Not Colonized by Bacteria: A Case Series.
Diot R, Goetti P, Borens O, Ramos-Pascual S, Wegrzyn J
Topics
Key Takeaway
Sonication of cerclage wires exchanged at second-stage revision THA for PJI revealed bacterial contamination in only 1 of 26 cases (3.8%) and zero cases of true bacterial colonization.
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Summary
This study asked whether cerclage wires used to stabilize ETO during first-stage revision THA for PJI become bacterially colonized by the time of second-stage reimplantation, which would justify their routine exchange. Twenty-six consecutive patients underwent second-stage revision with cerclage wire exchange; explanted wires and spacers were separately sonicated. Sonication demonstrated contamination in 1 wire and 1 spacer (3.8% each), with zero confirmed colonization events in either group.
Key Limitation
With only 26 patients and a single contamination event, the study is critically underpowered to establish a safe threshold for wire retention, and the absence of clinical infection recurrence data means colonization status cannot be correlated with patient outcomes.
Original Abstract
BACKGROUND
Eradication of infection after total hip arthroplasty (THA) is particularly challenging. The aim was to evaluate whether cerclage wires, used to stabilize an extended trochanteric osteotomy (ETO) in patients undergoing two-stage revision THA for infection, become colonized with bacteria. The findings could help discern whether cerclage wires should be systematically exchanged during the second surgery to reduce the risk of persistent infection.
METHODS
Patients were included in the study if they had undergone two-stage revision THA for infection, that required stem removal using an ETO, and the cerclage wires had been exchanged during the second-stage procedure. The cohort comprised a consecutive series of 28 patients, 14 females and 14 males, aged 67.9 ± 13.1 years with a body mass index of 29.8 ± 6.6 kg/m 2 . Following the second-stage procedure, sonication of the explanted spacer and cerclage wires was performed separately to check for bacteria.
RESULTS
Twenty-six of the 28 patients were available for bacterial testing following the second-stage procedure. Sonication of the cerclage hardware revealed one case of bacterial contamination and no cases of bacterial colonization. Furthermore, sonication of the spacer revealed one case of bacterial contamination and no cases of bacterial colonization.
CONCLUSIONS
Cerclage wires used for fixation of ETO during two-stage revision THA for infection are not colonized by bacteria, suggesting that it may not be necessary to systematically exchange them during the second-stage procedure. Further studies with larger cohort sizes are necessary to confirm these findings.