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Mycobacterium mageritense Prosthetic Joint Infection

Maria A Caravedo Martinez1, Lucas S Blanton1

  • 1Department of Internal Medicine, Division of Infectious Diseases, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77550-0435, USA.

Case Reports in Infectious Diseases
|August 1, 2020
PubMed

Insights

This study reports a rare case of prosthetic knee infection caused by Mycobacterium mageritense. Prompt treatment involving hardware removal and antimicrobials led to a successful outcome in this prosthetic joint infection.

Area of Science:

  • Infectious Diseases
  • Orthopedic Surgery
  • Microbiology

Background:

  • Prosthetic joint infections (PJI) affect up to 2% of arthroplasties, typically caused by bacteria.
  • Mycobacterial species, though infrequent, pose challenges in PJI due to biofilm formation and antimicrobial resistance.
  • Mycobacterium mageritense is a rapidly growing mycobacterium rarely implicated in device-related infections.

Observation:

  • A case of prosthetic knee infection caused by Mycobacterium mageritense is presented.
  • Mycobacterium mageritense is a rapidly growing mycobacterium rarely implicated in surgical or device-related infections.

Findings:

  • The patient with prosthetic knee infection due to M. mageritense underwent successful treatment.
  • Treatment involved hardware removal, antimicrobial therapy, and prosthetic knee reimplantation.

Implications:

  • This case expands the known spectrum of pathogens causing prosthetic joint infections.
  • Mycobacterium mageritense should be considered in the differential diagnosis of recalcitrant prosthetic joint infections.

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