Prosthetic fungal infections: poor prognosis with bacterial co-infection.

Sidhu, M S and Cooper, G and Jenkins, N and Jeys, L and Parry, M and Stevenson, J D (2019) Prosthetic fungal infections: poor prognosis with bacterial co-infection. The bone & joint journal, 101-B (5). pp. 582-588. ISSN 2049-4408.

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Official URL: https://online.boneandjoint.org.uk/doi/abs/10.1302...

Abstract

AIMS

The aims of this study were to report the efficacy of revision surgery for patients with co-infective bacterial and fungal prosthetic joint infections (PJIs) presenting to a single institution, and to identify prognostic factors that would guide management.

PATIENTS AND METHODS

A total of 1189 patients with a PJI were managed in our bone infection service between 2006 and 2015; 22 (1.85%) with co-infective bacterial and fungal PJI were included in the study. There were nine women and 13 men, with a mean age at the time of diagnosis of 64.5 years (47 to 83). Their mean BMI was 30.9 kg/m (24 to 42). We retrospectively reviewed the outcomes of these PJIs, after eight total hip arthroplasties and 14 total knee arthroplasties. The mean clinical follow-up was 4.1 years (1.4 to 8.8).

RESULTS

The median number of risk factors for PJI was 5.5 (interquartile range (IQR) 3.25 to 7.25). All seven patients who initially underwent debridement and implant retention (DAIR) had a recurrent infection that led to a staged revision. All 22 patients underwent the first of a two-stage revision. None of the nine patients with negative tissue cultures at the second stage had a recurrent infection. The rate of recurrent infection was significantly higher in the presence of multidrug-resistant bacteria (p = 0.007), a higher C-reactive protein (CRP) at the time of presentation (p = 0.032), and a higher number of co-infective bacterial organisms (p = 0.041). The overall rate of eradication of infection after two and five years was 50% (95% confidence interval (CI) 32.9 to 75.9) and 38.9% (95% CI 22.6 to 67), respectively.

CONCLUSION

The risk of failure to eradicate infection with the requirement of amputation associated with this diagnosis is much higher than in patients with PJI without bacterial and fungal co-infection, and this risk is heightened when the fungal organism is joined by polymicrobial and multidrug-resistant bacterial organisms. Cite this article: 2019;101-B:582-588.

Item Type: Article
Subjects: WC Communicabable diseases
WE Musculoskeletal. Orthopaedics
Divisions: Clinical Support > Infectious Diseases
Related URLs:
Depositing User: Mrs Yolande Brookes
Date Deposited: 03 May 2019 11:42
Last Modified: 03 May 2019 11:42
URI: http://www.repository.heartofengland.nhs.uk/id/eprint/2067

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