Does the Duration of Each Waldenström Stage Affect the Final Outcome of Legg-Calvé-Perthes Disease Onset before 6 Years of Age?

The purpose of this study was to evaluate the outcomes of patients with Legg-Calvé-Perthes disease (LCPD) with disease onset before 6 years of age who were treated with conservative methods and to identify prognostic factors. Moreover, we evaluated the duration of the Waldenström stage and its correlation with the disease outcome. Disease severity was assessed using the lateral pillar classification, and the final outcome was evaluated using the Stulberg classification. We divided patients with LCPD into two groups according to the age at onset: group 1 (