The incidence of Legg-Calvé-Perthes disease (LCPD) ranges from 0.4/100,000 to 29.0/100,000 children \<15 years of age. There is significant variability in incidence within racial groups and is frequently higher in lower socioeconomic classes. The typical age at presentation ranges from 4 to 8 years (average 6.5 years).The optimal treatment goal in Legg-Calvé-Perthes disease (LCPD) is to obtain a spherical femoral head with good congruency to prevent or delay the onset of osteoarthritis after skeletal maturity. There is agreement that patients younger than 5years with a good remodeling capacity have a particularly excellent prognosis, irrespective of treatment.
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Harris hip score
Timeframe: 6 months