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': 'Tardy ulnar nerve palsy is seen in \nSelect and explain. \nA. Medial condyle humerus, B. Lateral condyle humerus, C. Humerus shaft fracture, D. Fracture shaft radius', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Lateral condyle humerus Causes of tardy ulnar nerve palsy are : - Malunited lateral condyle humerus fracture (cubitus valgus) Displaced medial epicondyle humerus fracture Cubitus varus deformity (due to supracondylar fracture humerus) Elbow dislocation Contusions of ulnar nerve Shallow ulnar groove Hypoplasia of humeral trochlea Joint deformity after prolonged ahritis of elbow", 'role': 'assistant'}]