This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Dislocation of Elbow Joint, Subject name: Orthopaedics
Three point relationship is reversed in all, except 
Select and explain. 
A. medial epicondyle, B. lateral epicondyle, C. Supracondylar, D. Posterior elbow dislocation
C: Supracondylar
Answer: C: Supracondylar 
Explanation: Ans. is 'c' i.e Supracondylar Three bony point relationship : The three prominent bony points around the elbow are *:The medial epicondyleLateral epicondyleTip of olecranon& head of radius is sometimes considered as 4th bony point.Normally, in an elbow flexed to 90 degrees, these three bony points form a near isosceles triangle but they lie in a straight horizontal line in an extended elbow.These three bony points are important landmarks in diagnosis of injuries around the elbow.In supracondylar fracture-the three bony point relationship is maintained as in a normal elbow. Because the fracture line is above the condyles.