Amputation to one leg. Hurt remaining leg

Any advice welcome. Rescued a dog who had a back leg amputated (humans were cruel) the other back leg was also broken but saved. 1yr and half on and she's been ding great. Last Wednesday she was running and then just starting to slow and sit down often, no audible pain, of visible discomfort. Since then she hasn't been able to walk properly (I'll add video). Took her to the vets and had the consult outside as Tiga is scared of humans (mainly women) and cantgo into bet alone. I held her and vet was able to fully move her leg around and said she doesn't believe is a break at all, likely soft tissue damage but couldn't feel for ligaments as Tiga was too rigid. Gave anti inflammation and pain tablets a week go. Of course Tiga got up an walked with difficultly but much better at the vet. She's still doing okay in terms of temperament and trying to walk around so I guess my question is can anyone give any more insight with what could be going on? She tends to walk with her leg outwards. Should we be trying to do little walks round the block to get her strength up? It's just awful when she has only 1 leg,it just looks awful Vets have told us to leave her for a few weeks to see how she goes.   I do have videos of her walking which I can't post here

Hello!  - and what a harrowing time, waiting to find out how the remaining pelvic limb will recover. I have great faith that your vet will have done the best they can to localise the pain / soreness and can almost guarantee that no vet will improve on that diagnosis without meeting or assessing Tiga or at least, if they were an orthopaedic expert perhaps, looking at the clinical notes / any pictures for themselves (and neither would it be appropriate to try). I am worried, therefore, that you ask me whether I think it would be appropriate to let her do little walks around the garden.  The vets who know Tiga are in a much better position to assess the situation.  You should be able to ask your vet again if you need to, but it sounds as though you already know what they think. My opinion on this matter is that you should follow the instructions carefully.   Injuries can be difficult to repair at the best of times and there is no other leg to fall back on.   If you truly disagree with your vets' opinion, the correct thing to do would be to ask to be referred to an orthopaedic expert more knowledgeable than your vets, but this should be done through the proper channels. Best of luck;  sometimes, such cases do not work out but other times the remaining limb performs much better than expected.  Hang on in there - and let us know how it goes.  We're rooting for you.

... and for Tiga, of course!