Mid-term results of sub-trochanteric valgus osteotomy for symptomatic late stages Legg-Calvé-Perthes disease.

Background: The treatment of late stages of Legg-Calvé-Perthes disease (LCPD) is controversial. Although the concept of femoral head containment is a well-established technique of treatment, its use remains debatable in the late stages of the disease, as it does not improve symptoms in terms of limb length discrepancy and gait.

Aim: To assess the results of subtrochanteric valgus osteotomy in symptomatic patients with late-stage Perthes disease.

Virtual orthopedic assessment: Main principles and specific regions.

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