<qa>  What is the common occurrence of this surgery?The goal of this study is to compare different ways of treating pain after surgery. This research study involves subjects who have a supracondylar elbow fracture and need surgery. This type of fracture occurs when the humerus upper arm bone is broken just above the elbow. Like any other surgery, you can expect that you will feel pain in the hours or days after the operation. Currently, despite the common occurrence of this surgery, there is not a standard way to treat and or prevent any of the pain afterwards. 