Department of Trauma and Orthopaedics;
University College London Hospitals;
Microbiological Laboratory;
Orthopaedic Re-search Institute Galeazzi;
Centre for Reconstructive Surgery and Osteoarticular Infections;
Orthopaedic Research Institute Galeazzi;
Periprosthetic; joint; infection; Risk; factor; Predictive; Hip; arthroplasty; Knee; arthroplasty;