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Varus femoral osteotomies lead to spherical femoral head shapes in severe Legg-Calvé-Perthes disease cases

Terjesen T. Clin Orthop Relat Res. 2011. doi:10.1007/s11999-011-2181-7.

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Treating Legg-Calvé-Perthes disease with varus femoral osteotomies can lead to more spherical femoral heads in pediatric patients when compared to those who underwent physical therapy, according to this study.

At 5-year follow-up, researchers found that children between the ages of 6 and 10 years suffering from class D Legg-Calvé-Perthes disease (LCPD) were less likely to have flat femoral heads after osteotomy. Flat femoral heads were present in only 14% of children in the treatment group compared to 75% of children who underwent physical therapy, according to the abstract. Children with class C LCPD saw no radiographic benefit to the osteotomies in either the treatment group or the control.

Between 1996 and 2000, 70 patients with unilaterial LCPD were compared with 51 patients in a control with similar Caterall classified LCPD diagnoses. In each group, the hips were measured by flat, ovoid or spherical femoral head shape criteria at 5-year follow-up, according to the abstract.