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
Triangular relation of Elbow is maintained in 
Select and explain. 
A. Fracture ulna, B. Anterior dislocation of Elbow, C. Posterior dislocation of Elbow, D. Supracondylar fracture
D: Supracondylar fracture
Answer: D: Supracondylar fracture 
Explanation: D i.e. Supracondylar fracture