One of my ewes (with twins at foot) came down lame a little while ago. When there wasn't anything obvious in her hoof and she didn't improve, I had the vet take a look and it turned out to be something in her (back) knee joint. The vet put her on loxicom (eff. metacam I think), and said let's see if that helps her.
It does indeed mean that she's up and about the field, but she still limps and is still not as active as the rest of the flock. When I asked what would happen if she didn't recover, the vet muttered something about 'it might be a welfare issue, depends how much of a pet she is'.
It's been a just over a week since the initial visit. The vet is on holiday, else I'd ring her and chat about it, but my sense is that the jab does relieve her discomfort somewhat but she doesn't seem to be actually improving, so I wondered if anyone has experience with similar and what sort of timescale I should be thinking in, and what types of outcomes there might be? She's the pick of my flock, a great mother, etc etc, really hoping this is temporary.