Introduction: Sneathia sanguinegens(S sanguinegens) is a gram-negative rod-shaped bacterium mostly reported to cause a perinatal infection, and there are no reports of S sanguinegens in prosthetic joint infection (PJI). The purpose of this report is to describe a very rare case of PJI after total hip arthroplasty (THA) caused by S sanguinegens.
Patient Concerns: A 79-year-old woman presented with right coxalgia, inability to walk, and a fever of 39°C. She had undergone THA 28 years earlier for osteoarthritis of the hip.
Diagnoses: The diagnosis was acute late-onset PJI, because blood tests revealed marked inflammatory reaction and computed tomography showed an abscess at the right hip joint; synovial fluid analysis resulted in detection of a gram-negative bacillus.
Intervention: Surgical debridement with retention of the implant and antibiotic therapy was performed.
Outcomes: One month after surgery, polymerase chain reaction (PCR) assay showed that the pathogen was 99.9% likely to be S sanguinegens. There has been no recurrence of infection or loosening of the implant in the 2 years since her surgery.
Lessons: PCR should facilitate detection of previously unknown pathogens and potentially novel bacterial species.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7544305 | PMC |
| http://dx.doi.org/10.1097/MD.0000000000022494 | DOI Listing |
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