Reliability of predictive models for non-operative healing potential of stable juvenile osteochondritis dissecans knee lesions.

Background: While juvenile osteochondritis dissecans (JOCD) lesions have greater healing potential than equivalent lesions in adults, only 50% of JOCD lesions demonstrate radiographic healing after six months of non-operative treatment. Two previous studies have produced nomograms to predict a patient's probability of healing with non-operative treatment based on patient and lesion characteristics. The purpose of this study was to determine inter- and intra-observer reliability of the predictive nomograms.