This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': "Blount's disease is associated with all of the following, EXCEPT: \nSelect and explain. \nA. Genu varum, B. Genu Recurvatum, C. Internal Tibial Torsion, D. External Tibial Torsion", 'role': 'user'}, {'content': "Answer: D \nExplanation: Blount's disease is characterized by varus and internal tibial torsion and genu recurvatum, with varus of the proximal tibia being the primary deformity. It is not associated with external tibial torsion. Ref: Operative techniques in pediatric ohopedics, by John M.Flynn, Sam W.Wiesel, Page 205, 206.", 'role': 'assistant'}]