A Descriptive Study on the Role of Magnetic Resonance Imaging in Staging Avascular Necrosis of the Hip Joint: Current Trends and Insights

The ARCO classification system is superior in assessing disease severity. The modified Kerboul's angle is useful for assessing femoral head deformity. The radiologic staging of the disease is of great importance for the identification and risk stratification in pre-collapse stages, prognosis, adequate treatment planning, and post-operative follow-up.