Did you give him an injection of BO-SE? (1/4 - 1/2 cc) Sounds like he could use that, or a Vit E capsule. Poke a hole in the capsule and put the liquid inside into his mouth. Either of these is a source of selenium, which well help.
If the legs are quite badly bent, you may opt to splint. Most mild cases correct themselves in a few days.
That said, I did have a buckling born here with badly curved-under front pasterns, and I did splint both legs. He turned out well.
After giving the Bo-Se or Vitamin E liquid you could also see if massaging the legs would help before opting to splint them.
Sometimes they've been cramped up inside momma so long is what causes this, especially if they are born pretty big.
We've tended to cull the ones with these problems (all other things being equal), since my father-in-law claimed he saw this "trait" passed on genetically. I guess we shouldn't be so hasty if it's as likely to happen to one as another.
I haven't had this problem with goats, but I have seen it in horses. Usually because the baby was huge. The ones that I've dealt with refused to eat if splinted, so I just gently pull and massage the legs several times a day until they straighten out. It usually doesn't take more than a couple of days before they are up and bouncing around!!
Both the boys knees and ankles were bent. The other boy I just put splints on his knees and his legs are already straightened out. This guy I take them off at night and do additional stretching on the hocks.
Did you give the boys a shot of Bo-Se or the liquid from the vitamin E capsules? I really think that would do them a lot of good & maybe no splints would be needed at all then.
Poor little guy, he looks like he doesn't know what to do with those splints on.