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This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.

Kocher Criteria (septic arthritis of the hip)

Fever, non-weight-bearing, ESR ≥ 40 mm/h, leukocytes > 12 000 – probability of septic arthritis 0.2 to 99.6 %

Criteria

Calculation aid for healthcare professionals: the calculator reproduces what the sources cited assign to the inputs. Clinical assessment and every treatment decision remain with the treating physician. Inputs and results are not stored.

Frequently asked questions

Kocher Criteria (septic arthritis of the hip): What does this calculator compute?

Kocher criteria (1999, validation 2004) for distinguishing septic arthritis from transient synovitis of the pediatric hip: history of fever, non-weight-bearing, ESR ≥ 40 mm/h and leukocytes > 12 000/mm³ – probability of septic arthritis by number of criteria (< 0.2 %, 3 %, 40 %, 93.1 %, 99.6 %).

Kocher Criteria (septic arthritis of the hip): Which sources is this calculator based on?

Kocher MS, Zurakowski D, Kasser JR: Differentiating between septic arthritis and transient synovitis of the hip in children: an evidence-based clinical prediction algorithm (J Bone Joint Surg Am 81:1662–1670) (1999); Kocher MS, Mandiga R, Zurakowski D, Barnewolt C, Kasser JR: Validation of a clinical prediction rule for the differentiation between septic arthritis and transient synovitis of the hip in children (J Bone Joint Surg Am 86:1629–1635) (2004); Caird MS, Flynn JM, Leung YL, Millman JE, D'Italia JG, Dormans JP: Factors distinguishing septic arthritis from transient synovitis of the hip in children. A prospective study (J Bone Joint Surg Am 88:1251–1257) (2006); Valisena S et al.: The Kocher–Caird Criteria for Pediatric Septic Arthritis of the Hip: Time for a Change in the Kingella Era? (Microorganisms 12:550) – reproduces the full-text values of Caird 2006 for 0–5 factors (2024)