ArticleJournal of medical case reports2026
Prosthetic joint infection caused by Neisseria sicca/subflava.
Article in Journal of medical case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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6 authors.
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Abstract
backgroundProsthetic joint infections are most commonly caused by staphylococci and streptococci, while commensal Neisseria species are exceedingly rare etiologic agents. CASE PRESENTATION: We report a 71-year-old white male with multiple comorbidities who presented with progressive left knee pain 9 years after total knee arthroplasty. Synovial fluid analysis showed an elevated leukocyte count with neutrophil predominance, and cultures subsequently grew Neisseria sicca/subflava. Given the concern for prosthetic joint infection, he underwent prosthesis explantation and received intravenous ceftriaxone 2 g daily for 6 weeks. Poor dentition was identified as a suspected potential source of hematogenous seeding. The patient demonstrated clinical improvement with surgical intervention and targeted antimicrobial therapy.
conclusionNeisseria sicca/subflava should be recognized as a rare but clinically significant cause of prosthetic joint infection.
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