The 2013 IDSA guidelines provide consensus recommendations for diagnosing and managing prosthetic joint infection. They cover the full surgical decision tree — debridement and retention, one-stage exchange, two-stage exchange, resection, and amputation — with organism-specific antibiotic protocols. Most recommendations are expert opinion-based given limited RCT data in this field.
PJI management was highly variable before these guidelines — no consensus existed on when to retain versus remove a prosthesis, how many cultures to collect, or how long to treat.
When you see an acutely painful THA or TKA with wound drainage, the decision tree starts with three questions: Is the prosthesis well-fixed? Is there a sinus tract? Are you within 30 days of implantation or 3 weeks of symptom onset? If all three favor retention, debridement and retention with rifampin combination therapy is appropriate.
For any revision case where PJI is on the differential, hold antibiotics for 2 weeks before collecting cultures, send at least 5-6 periprosthetic specimens, and consider sonicating the explant. These three steps directly improve diagnostic yield. The 3-month versus 6-month antibiotic duration distinction (THA versus TKA) is a high-yield board fact and a real clinical decision point. Know it cold.
The 2013 IDSA guidelines provide consensus recommendations for diagnosing and managing prosthetic joint infection. They cover the full surgical decision tree — debridement and retention, one-stage exchange, two-stage exchange, resection, and amputation — with organism-specific antibiotic protocols. Most recommendations are expert opinion-based given limited RCT data in this field.
PJI management was highly variable before these guidelines — no consensus existed on when to retain versus remove a prosthesis, how many cultures to collect, or how long to treat.
When you see an acutely painful THA or TKA with wound drainage, the decision tree starts with three questions: Is the prosthesis well-fixed? Is there a sinus tract? Are you within 30 days of implantation or 3 weeks of symptom onset? If all three favor retention, debridement and retention with rifampin combination therapy is appropriate.
For any revision case where PJI is on the differential, hold antibiotics for 2 weeks before collecting cultures, send at least 5-6 periprosthetic specimens, and consider sonicating the explant. These three steps directly improve diagnostic yield. The 3-month versus 6-month antibiotic duration distinction (THA versus TKA) is a high-yield board fact and a real clinical decision point. Know it cold.