TY - CHAP M1 - Book, Section TI - Legg-Calvé-Perthes Disease A1 - Ritter, Kathryn A1 - Fitch, Robert Warne A2 - Knoop, Kevin J. A2 - Stack, Lawrence B. A2 - Storrow, Alan B. A2 - Thurman, R. Jason PY - 2021 T2 - The Atlas of Emergency Medicine, 5e AB - Legg-Calvé-Perthes disease is idiopathic avascular necrosis of the femoral head due to disruption of blood flow. It typically occurs in children aged 4 to 10 years and is more common in males. Patients typically present with hip pain and a limp, which is exacerbated by activity. Legg-Calvé-Perthes may be diagnosed on radiographs. X-rays may show widening of the cartilage space or a subchondral stress fracture. If left untreated, this will progress to femoral head deformity and subluxation from the acetabulum. SN - PB - McGraw-Hill CY - New York, NY Y2 - 2024/03/29 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1181043718 ER -