Kocher criteria for pediatric septic hip
Separates septic arthritis from transient synovitis of the hip in children.
Inputs
Not bearing weight
Fever above 38.5 °C
ESR above 40 mm/h
WBC above 12,000/µL
Worked calculation
Your values are highlighted.
- Points
When to use
- Child with an irritable hip.
Pearls and pitfalls
- CRP above 2 mg/dL adds predictive value (Caird modification).
- Later validation cohorts showed lower probabilities.
Why use
Four bedside and lab items.
| Criterion | Points |
|---|---|
| Not bearing weight | +1 |
| Fever above 38.5 °C | +1 |
| ESR above 40 mm/h | +1 |
| WBC above 12,000/µL | +1 |