Blount’s Disease — Langenskiöld Classification
Pathologic varus from disordered endochondral growth of medial proximal tibial physis; early walkers/obesity risk. **Langenskiöld stages I–VI** describe progressive physeal/epiphyseal changes (beaking → depression → physeal bar). Differentiate from physiologic bowing using **metaphyseal–diaphyseal angle** (>11° suggests Blount). Management: **Bracing** in early Stage I–II (
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1Practised by MCQ
10What is the primary cause of Blount's disease?
mcqAt what age does Stage I of the Langenskiöld classification typically present?
mcqWhat characteristic finding distinguishes Blount's disease from physiological bowing?
mcqIn which stage of Langenskiöld classification is bracing still considered effective?
mcqWhich of the following is a potential management option for Stage I Blount's disease?
mcqWhat is the primary feature observed in Stage IV of the Langenskiöld classification?
mcqWhat distinguishes adolescent Blount's disease from the infantile form?
mcqWhich surgical intervention is indicated in Stage III of Blount's disease?
mcqWhat is a common risk factor for both infantile and adolescent forms of Blount's disease?
mcqWhich statement is true regarding the Langenskiöld classification?