Three point bony relationship in elbow
The tips of medial and lateral epicondyles and the olecranon(the bony point)
From isosceles triangle- in elbow flexion of 90 degrees.
Lie transversely in a straight line on elbow extension.
The three point bony relationship is maintained in the case of supracondylar fracture of humerus as the fracture occurs above the level of these bony landmarks
Condition where it is distorted:
Fracture medial condyle and epicondyle
Fracture lateral condyle and epicondyle
Intercondylar fracture of humerus
Fracture olecranon
Elbow dislocation