Periprosthetic knee infection after benign tumor excision complicated by carbapenem resistant Enterobacteriaceae: A

Jennifer P Adams1, Daniel Habenicht1, Duncan Ramsey2

  • 1University of Texas Rio Grande Valley School of Medicine, Harlingen, TX, USA.

Abstract

Insights

Carbapenem-resistant Enterobacteriaceae (CRE) can cause rare but serious periprosthetic joint infections (PJI) after knee surgery. Early diagnosis and a multidisciplinary approach are crucial for effective treatment of these challenging infections.

Area of Science:

  • Orthopedic Surgery
  • Infectious Diseases
  • Microbiology

Background:

  • Periprosthetic joint infection (PJI) is a significant complication following total knee arthroscopy.
  • Enterobacter species are infrequent causes of PJI.

Observation:

  • A 65-year-old immunocompetent male developed acute right knee PJI with Carbapenem-resistant Enterobacteriaceae (CRE) two months post-operatively after intra-articular mass removal and endoprosthetic reconstruction.
  • The patient was treated with revision surgery involving a 1-stage static spacer and intravenous meropenem.

Findings:

  • CRE is an uncommon etiology for PJI, typically affecting immunocompromised individuals or those with specific risk factors.
  • This case highlights a CRE PJI in an immunocompetent host, suggesting the need for further systemic disease evaluation.

Implications:

  • This case underscores the critical need for prompt diagnosis and management of CRE joint infections.
  • A multidisciplinary strategy, incorporating aggressive surgical intervention and targeted antibiotic therapy, is essential for successful outcomes in CRE PJI.

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