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Implant retention and high rate of treatment failure in hematogenous acute knee and hip prosthetic joint infections

Abstract : OBJECTIVES: Only few studies evaluated hematogenous prosthetic joint infections. We aimed to describe the characteristics of these infections and factors associated with management failure. METHODS: We selected hematogenously-acquired infections, defined by the occurrence of infectious symptoms more than a year after implantation among records of patients treated for hip and knee prosthetic joint infections at Montpellier University Hospital between January 2004 and May 2015. Failure was defined by death due to prosthesis-related infection, need for prosthesis removal in case of conservative treatment, or recurrence of infectious signs on a new prosthesis. RESULTS: Forty-seven patients with hematogenous prosthetic joint infection were included (33 knee infections and 14 hip infections). Infectious agents were streptococci (43%), Staphylococcus aureus (43%), Gram-negative bacilli (13%), and Listeria monocytogenes (2%). Thirty-one patients were initially treated with debridement and implant retention and 15 with prosthesis removal (three with one-stage surgery, 10 with two-stage surgery). The median duration of antibiotic therapy was 66.5 days. The overall failure rate was 52% (24/48), 71% (22/31) with implant retention strategy, 13% (2/15) with prosthesis removal, and 63% (12/19) in case of Staphylococcus aureus infection. Conservative treatment was appropriate (arthrotomy on a well-implanted prosthesis without sinus tract and symptom onset <21 days) in 13/31 patients (42%) with a failure rate still high at 69% (9/13). The only factor associated with failure was conservative surgical treatment. CONCLUSION: The high risk of failure of conservative treatment for hematogenous prosthetic joint infections should lead to considering prosthesis replacement as the optimal strategy, particularly with Staphylococcus aureus.
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https://hal.umontpellier.fr/hal-02524171
Contributeur : Nathalie Salvy-Cordoba <>
Soumis le : lundi 30 mars 2020 - 10:58:46
Dernière modification le : vendredi 15 mai 2020 - 12:22:10

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N. Pansu, M. Hamoui, F. Manna, A. Makinson, S. Dufour, et al.. Implant retention and high rate of treatment failure in hematogenous acute knee and hip prosthetic joint infections. Medecine Et Maladies Infectieuses, Elsevier, 2019, ⟨10.1016/j.medmal.2019.11.005⟩. ⟨hal-02524171⟩

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