Staging and Classification of Severity of Legg-Calvé-Perthes Disease and Its Relevance

Legg-Calve-Perthes disease (LCPD) remains controversial regarding treatment and outcome. In order to bring uniformity to the discussion of management of LCPD, researchers and clinicians must be able to reliably stratify LCPD patients by disease severity and stage at presentation. The intervention offered and ultimately the treatment outcome may be impacted by the disease stage and severity. It is essential to control for these confounding variables by grouping patients accurately and precisely, regardless of observer.