Pippa's my dog. She's had a hard time lately. Anterior cruciate ligament went in one of her back legs, coincidentally the same one that she tore all the tendons in 4 years ago. That wasn't so bad, the vets can fix these things, they substitute fishing wire for ligament and away you go, after a few weeks of recuperation. She was healing well, very well in fact, doing 15 minute walks a few weeks after the op. But then she started carrying her 'good' back leg, same symptons as before. It's an age thing, her ACLs have stretched and she's got hip displacia.