Table 1 The evidence-based definition for periprosthetic joint infection (PJI).
From: Plasma fibrinogen in the diagnosis of periprosthetic joint infection
Diagnosis criteria | Score | Decision | |
|---|---|---|---|
Major criteria | 1. Two positive cultures with the same organisms | – | Infected |
2. A sinus tract communicating with the joint | – | ||
Minor criteria | 1. Elevated serum CRP or D-Dimer 2. Elevated serum ESR 3. Elevated synovial WBC or LE 4. Positive alpha-defensin 5. Elevated synovial PMN (%) 6. Elevated synovial CRP | 2 | ≥ 6 infected 2–5 possibly infected 0–1 not infected |
1 | |||
3 | |||
3 | |||
2 | |||
1 | |||
Inconclusive pro-op score or dry tap | 1. Preoperative score 2. Positive histology 3. Positive purulence 4. Sing positive culture | – | ≥ 6 infected 4–5 Inconclusive ≤ 3 not infected |
3 | |||
3 | |||
2 |
