Kocher’s Criteria
Predictors associated with risk of Septic Arthritis
- Fever
- Non-weight-bearing
- ESR = 40 or more
- Serum WBC = 12,000 or more
Probability of Septic Arthritis based on number of Predictors
- 0 Predictors – <0.2 %
- 1 Predictor – 3.0%
- 2 Predictors – 40.0%
- 3 Predictors – 93.1%
- 4 Predictors – 99.6%
Use this information wisely… not blindly.
