This video winks at me like something we’ve seen before, but I’ve searched for all the relevant keywords, and it didn’t come up. There are many similar videos, such as this one, but this particular one may not have been posted yet. So here goes.
The video shows the aftermath of a motorcycle accident. Two men sit on the side of the road after being injured in the crash. One is pretty calm, but the other one agonizes and screams having had his knee completely destroyed and femur exposed.
Props to Best Gore member @seraphim-serenata for the video: