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: Orthopaedics
[{'content': 'A patient sustained injury to the upper limb 3 yrs back; he now presents with valgus deformity in the elbow and paresthesias over the medial border of the hand. The injury is likely to have been - \nSelect and explain. \nA. Supracondylar # humerus, B. Lateral condyle # humerus, C. Medial condyle # humerus, D. Posterior dislocation of the humerus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: There is no confusion for this one as patient has developed tardy ulnar nerve palsy with valgus deformity.\nCubitus vulgus occurs with fracture lateral condyle.', 'role': 'assistant'}]