A 5 year old presents with FOOSH injury and a swollen elbow. His elbow x-rays are as follows. What do you notice?
[peekaboo_link name=”Answer”]Answer[/peekaboo_link] [peekaboo_content name=”Answer”]
The AP view shows no obvious fracture and the radiocapitellar line is intact.
However, the lateral view shows the ‘sail sign’; the anterior humeral line has the entire capitulum lying in front of it. This should raise the possibility of a supracondylar fracture. If you look carefully, there is a supracondylar fracture with volar angulation of the distal humerus.
More details on fat pad sign and anterior humeral lines can be found at: