LANGENSKIOLD CLASSIFICATION OF TIBIA-VARA - AN ASSESSMENT OF INTEROBSERVER VARIABILITY

Six pediatric orthopaedic specialists and six senior orthopaedic resid ents independently classified 60 radiographs of infantile tibia vara a ccording to the six-stage Langenskiold classification. Correlation coe fficients and percentage agreement were similar in both groups. Intero bserver agreement was good for early and late stages, but was poor for intermediate stages. We caution clinicians that small but frequent di screpancies in radiographic staging impart a dubious prognostic value to the Langenskiold classification.