TY - CHAP M1 - Book, Section TI - Avascular Necrosis of the Proximal Femur (Legg-Calvé-Perthes Disease) A1 - Hay, Jr, William W. A1 - Levin, Myron J. A1 - Deterding, Robin R. A1 - Abzug, Mark J. PY - 2017 T2 - Quick Medical Diagnosis & Treatment Pediatrics AB - Occurs when the vascular supply to the proximal femur is interruptedHighest incidence occurs between ages 4 and 8 yearsPrognosis for complete replacement of the necrotic femoral head in a child is excellent, but the functional result depends on the amount of deformity that has developedBetter outcomes are observed for patients with an onset of symptoms before the age of 6Generally, a poorer prognosis is expected forPatients in whom the disease develops late in childhoodThose with more completed involvement of the epiphysial centerThose with metaphysial defectsThose who have more complete involvement of the femoral head SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - accesspediatrics.mhmedical.com/content.aspx?aid=1145453980 ER -