Mack has windpuffs on his left hind. He also has Thoroughpin (sp?), which is essentially a windpuff in a hock, in both hocks. He's also already arthritic, so I can't offer you much on that.
However, I CAN offer that I've found it best to leave him bandaged in standing wraps if he has to spend more than a few hours inside, because if he stocks up, he gets very stiff--particularly in that left hind. This is totally non-scientific, but I think he is responding to discomfort resulting from the increased pressure in that leg. (you can only put so much fluid in there! lol) If he stays bandaged, and therefore not stocked up, he stays a happy camper.
He's had these for at least five years, and he's getting to be an old man, but they haven't seemed to get any worse, or effect him any more.
Hope this helps a little bit.