For whatever reason, it appears as if the right front leg is rotated to the outside at the elbow and through the radius to the knee. It appears that the connection between the radius and the carpus (knee) has flattened and bone spurs have formed as part of remodeling.
The rotation may start at the elbow, or it may start higher up through the humerus and the scapula of the shoulder.
In the moving photo facing on (2nd photo from the top) you can see the rotation of the leg and how her toe points in.
A photo from the front, like the last one you posted, that is zoomed out a bit more showing the chest and all the way to the feet would be good.. and having her stand on a flat hard surface, such as asphalt or concrete would also be good.
A video of her walking toward the camera and then another walking away.. same with trotting as well as a side shot video would also be helpful.
All that being said, you really do need a vet to look at this and give you a proper diagnosis of the problem. I would think, just from the standpoint of basic physics, that a horse with this much rotation would have real trouble if jumped or used hard..
..That being said, some of the crooked horses out there in the US on the track that were big winners included horses like Exterminator, John Henry and Seabiscuit.
Get a vet to look at this. IMO there are not corrective measures you can take to fix this.
This is a horse that I would have an Equine vet come and look at. She is not lame now l
There is something about the outside of a horse that is good for the inside of a man. ~Winston Churchill
) Dinosaur Horse Trainer