Beth, I've been down this road 3 times with senior hounds, 9 to 10 yrs. old. From first limp to the end was only 6 weeks. A combination of tramadol and NSAID (Deramaxx or Rimadyl is what I used) plus Pepcid for the tummy was pretty effective for pain control, although they all mostly tripod'd around rather than use the affected leg. The end sign, for me, was sudden uncontrollable swelling of the limb and my hound's eyes, telling me it was time. You'll know when that is. I'm so very sorry you have to deal with this monster.
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