Epidemiology and Outcomes of Candida-Associated Osteoarticular Infections: A Multicenter Retrospective Study from Turkey

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This multicentre retrospective study investigated the epidemiology, clinical characteristics, and fluconazole resistance rates of Candida species in osteoarticular infections across Turkey as well as the factors influencing complete recovery. Data were gathered from 73 adult patients diagnosed with proven or probable Candida-associated osteoarticular infections between 2015 and 2025 from 20 healthcare centres. The most common clinical presentation was spondylodiscitis, followed by the involvement of phalangeal bones in the hands and feet. Non-albicansCandida species accounted for 37/73 cases (50.7%), with Candida parapsilosis being the most frequent. Fluconazole resistance was low among C. albicans isolates (3%) but higher among non-albicans yeasts (27%). Bacterial co-infection, predominantly Gram-positive bacteria, was detected in 52.1% of cases. Diabetes was present in 50/73 patients (68.5%), particularly insulin-dependent diabetes, and was a prominent comorbidity that may have also contributed as a predisposing factor. Radiological detection of osteomyelitis was achieved in 69.9% of patients. Fluconazole was the most commonly used antifungal agent (74%) with a median treatment duration of 90 days. Multivariate analysis revealed that surgical debridement was significantly associated with a higher odds of clinical recovery (adjusted odds ratio [aOR], 5.764; 95% confidence interval [CI], 1.360-24.434; P = .017), whereas diabetes mellitus was significantly associated with a lower odds of total recovery (aOR, 0.205; 95% CI, 0.053-0.792; P = .022). In conclusion, this multicentre study provides epidemiological data and fluconazole resistance rates of Candida species causing osteoarticular infections in Turkey, highlights the occurrence of C. auris in this cohort, and identifies surgical intervention and diabetes mellitus as factors significantly associated with recovery.

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