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Actinomyces neuii subsp. neuii Associated with periprosthetic infection in total hip arthroplasty as causative agent

Heime Rieber1, Roman Schwarz, Oliver Krämer

  • 1Division of Microbiology, MVZ Dr Stein and Colleagues, Mönchengladbach, Germany. hrieber@labor-stein.de

Journal of Clinical Microbiology
|October 2, 2009
PubMed

Insights

Actinomyces neuii is identified as a novel pathogen causing periprosthetic joint infection in total joint replacements. This finding highlights the importance of detecting Actinomyces species in such infections.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Orthopedic Surgery

Background:

  • Periprosthetic joint infection (PJI) is a serious complication following total joint replacement (TJR).
  • Common pathogens in PJI include Staphylococcus and Streptococcus species.
  • Actinomyces species have not been previously implicated in PJI.

Observation:

  • A case of periprosthetic infection in a total knee replacement is presented.
  • The infection was caused by Actinomyces neuii subsp. neuii.

Findings:

  • Actinomyces neuii subsp. neuii is identified as a causative pathogen in periprosthetic joint infection.
  • This represents the first reported instance of A. neuii causing PJI in total joint replacement.

Implications:

  • The detection of Actinomyces species should be considered in the diagnosis of PJI.
  • This finding expands the spectrum of known pathogens associated with orthopedic implant infections.
  • Further research is warranted to understand the prevalence and management of Actinomyces-related PJIs.

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