Sand A, Wenger D, Düppe H, Tiderius CJ. Response to Letter: Correlation between acetabular index at 3 and 12 months of age: a longitudinal radiographic study of 228 neonates treated for 6 or 12 weeks with the von Rosen splint for developmental dysplasia of the hip. ActaO [Internet]. 2026 Apr. 16 [cited 2026 Apr. 24];97:245–246. Available from: https://actaorthop.org/actao/article/view/45820