This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Injuries Around Arm & Elbow, Subject name: Orthopaedics
[{'content': 'Cubitus varus deformity is result from \nSelect and explain. \nA. Malunited supracondylar fracture humerus, B. Malunited lateral condyle fracture humerus, C. Fracture dislocation of elbow joints, D. Malunited capitullum fracture', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A. i.e. (Malunited supracondylar fracture humerus) (599 - Apley 8th)* Malunion is the commonest complication of supracondylar fracture and results in a cubitus varus deformity (Gun - stock deformity). This is because the fracture unites with the distal fragment tilted medially and in internal rotation.* Cubitus valgus - deformity results from fracture lateral condyl of humerus. This may result in late ulnar nerve palsy (Tardy ulnar nerve palsy)', 'role': 'assistant'}]