You can feel her leg and see if it reacts to a light touching… then move to a firmer pressure to locate the area that is causing her pain.
I would suspect the problem isn’t in the knee if it still is that active…check the hoof for anything cut…..I don’t wrap a joint unless I believe it is part of the problem, but if you do have to wrap it , make sure it’s not too tight . Check it several times a day and make sure the hoof/foot area has good blood flow and there is no swelling.
If she isn’t better within a day after you remove the wrap, you may want to consider a vet visit …..this is just how I treat a leg injury, others may do it differently