J Bone Jt Infect 2018; 3(3):138-142. doi:10.7150/jbji.24819

Research Paper

Cerclages after Femoral Osteotomy Are at Risk for Bacterial Colonization during Two-Stage Septic Total Hip Arthroplasty Revision

Viktor Janz, Georgi I. Wassilew, Carsten F. Perka, Michael Müller

Charité - Universitätsmedizin Berlin, Orthopaedic Department, Charitéplatz 1, 10117 Berlin, Germany

Abstract

Aims: In cases of a two-stage septic total hip arthroplasty (THA) exchange a femoral osteotomy with subsequent cerclage stabilization may be necessary to remove a well-fixed stem. This study aims to investigate the rate of bacterial colonization and risk of infection persistence associated with in situ cerclage hardware in two-stage septic THA exchange.

Patients and Methods: Twenty-three patients undergoing two-stage THA exchange between 2011 and 2016 were included in this retrospective cohort study. During the re-implantation procedure synovial fluid, periprosthetic tissue samples and sonicate fluid cultures (SFC) of the cerclage hardware were acquired.

Results: Seven of 23 (30%) cerclage-SFC produced a positive bacterial isolation. Six of the seven positive cerclage-SFC were acquired during THA re-implantation.

Two of the seven patients (29%) with a positive bacterial isolation from the cerclage hardware underwent a THA-revision for septic complications. The other five patients had their THA in situ at last follow-up.

Conclusions: Despite surgical debridement and antimicrobial therapy, a bacterial colonization of cerclage hardware occurs and poses a risk for infection persistence. All cerclage hardware should be removed or exchanged during THA reimplantation.

Keywords: Cerclage, Femoral Osteotomy, Two-Stage THA Exchange

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How to cite this article:
Janz V, Wassilew GI, Perka CF, Müller M. Cerclages after Femoral Osteotomy Are at Risk for Bacterial Colonization during Two-Stage Septic Total Hip Arthroplasty Revision. J Bone Jt Infect 2018; 3(3):138-142. doi:10.7150/jbji.24819. Available from http://www.jbji.net/v03p0138.htm