# A Rare Case of Prosthetic Joint Infection Caused by Group D Salmonella

## TL;DR

A rare case of knee infection from Group D Salmonella was successfully treated with surgery and antibiotics, highlighting the importance of collaboration between specialists.

## Contribution

Reports a rare case of knee PJI caused by Group D Salmonella and its successful treatment strategy.

## Key findings

- Knee prosthetic joint infections caused by Group D Salmonella are extremely rare.
- Two-stage revision surgery and targeted antibiotic therapy based on susceptibility testing led to successful treatment.
- Collaboration between orthopedic and infectious disease specialists is critical for managing such infections.

## Abstract

Prosthetic joint infections (PJIs) are gaining growing attention as a healthcare issue. Salmonella spp. is a rare cause of PJI, mostly involving hip arthroplasty rather than knee arthroplasty. Therefore, clinical experience on the management of PJI involving knee arthroplasties caused by Salmonella spp. is scant. We report a case of knee PJI caused by Group D Salmonella, successfully treated with a two‐stage revision surgery and appropriate antibiotic therapy, based on antimicrobial susceptibility of the cultural isolate. Such challenging cases evidence that clinical success is achievable through appropriate medical and surgical management, combined with a strong collaboration between orthopedics and infectious disease specialists.