Total knee arthroplasty is an increasingly common surgical intervention for degenerative knee disease, yet it carries a risk of prosthetic joint infection (PJI). While bacterial infections dominate the landscape of PJIs, fungal infections represent a rare but significant concern, especially in immunocompromised patients. This case report describes a 71-year-old patient who presented in October 2024 with left knee pain and swelling 7 months after total knee arthroplasty. A prosthetic joint infection due to Candida parapsilosis was diagnosed preoperatively by repetitive microbiological examination of synovial fluid and intraoperatively by tissue samples and sonication of prosthetic material. A two-stage revision surgery with a short 4-week interval was performed using an antifungal-impregnated spacer, followed by 6 months of systemic antifungal treatment with fluconazole and continued by fluconazole suppressive treatment for another 6 months. A favorable clinical and functional outcome was achieved after 11 months of follow-up. This is a rare case of fungal PJI treatment with a two-stage revision with a shorter interval, using an antifungal impregnated spacer combined with a prolonged antifungal therapy.
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