My daughter's paint gelding seems to have to have an annual injury and one year, while out in the pasture playing at night, he must have reared up and gone over. I found him in the morning, standing over by the fence and when I fed, he didn't come over which was unusual becauase he's the boss. Then I noticed he was breathing funny, his flanks were sucked up and his hocks were all skinned up. When we could finally get him in a trailer safely, about 3 wks later, the x-rays showed that he had snapped off 4 of his wither spines, about 3-4 inch pieces..... we had to elevate his food and water, give him major bute and the chiro came out and gave us exercises to keep his neck and shoulders limber. He may have snapped his shoulder blade too but the bone is too thin to show up on x-rays, either way his left shoulder is still a little enlarged. His withers now look funny but he is totally functional again, jumping, doing dressage, playing in the pasture and scaring me again!
Here he is with withers, playing in the sprinklers-