Fungi are a rare and devastating cause of Periprosthetic Joint Infection (PJI). Diagnosis and treatment is a challenge as there are currently no specific guidelines. A recently published review identified 75 case reports of fungal PJI. The aim is to describe our experience of treating fungal PJI since 2011 within the Bone Infection Unit at our institution.Introduction
Aim
Diagnosing Orthopaedic infection is limited by the sensitivity of culture methods. Next generation sequencing (NGS) offers an alternative approach for detection of microorganisms from clinical specimens. However, the low ratio of pathogen DNA to human DNA often inhibits detection of microorganisms from specimens. Depletion of human DNA may enhance the detection of microbial DNA1. Our aim was to compare four DNA extraction methods for the recovery of microbial DNA from orthopaedic samples for NGS. Simulated samples; pooled culture negative sample matrix was spiked with known concentrations of microorganisms, each panel consisting of 7 samples. Broth culture was performed on simulated samples for comparison with NGS DNA Extraction; total nucleic acid extraction was performed on an automated extraction platform Detection of human and microbial DNA; human endogenous (HE) gene rtPCRAim
Method