[QUOTE=fish;6163826]
I was, of course, hoping to receive more encouraging news. The decision not to amputate is based on several factors, and supported by the vet my dog likes best-- a small animal DVM specializing in Chiropractics. Remember, this is a 12+ year old dog – he neither looks it nor acts it, but that’s what he is. GSP’s are like that. The tumor is on a front leg, he already has spondylosis, + a history of excruciating displacements in his neck (hence the chiropractor, who’s been enormously successful in managing these), + some laxity (think "dropped pastern) in the toes of one of his hind legs, in addition to a decided distaste for veterinary hospitals going back to treating problems stemming from his life before I got him (at 1+ year old, after the pound picked him up emaciated and full of worms from living on his own for no one knows how long.) This is why those who know and love him best do not believe he’s a good candidate for amputation. Especially because it would be a front limb that would be lost, the chiropractor fears that attempting to adjust his balance to accommodate amputation could easily throw his cervical vertebrae out again-- which was much more painful to him than the cancer has been thus far.
I am sorry to hear such discouraging reports on the alternative treatments, especially given the numerous exciting reports google, etc., turned up. My feeling is that the best/only thing I can do is try everything that does not cause my dog more pain, enjoy spoiling him rotten every day he has left, and have the vet put him into his last sleep, in our own bed, when the day comes when my doggie tells me he’s no longer enjoying this world.
Right now, I’m using Essiac tea, omega 3’s, turmeric, a high protein diet including fresh, optimally raised, fish, chicken, etc. + rimadyl and tramadol for pain and swimming in the beaver dam for exercise. He limps when he walks, but swims like a champ and still looks SO happy when he’s doing it-- and getting rubbed down for a nap by the fire afterward.
It ain’t over 'til it’s over.[/QUOTE]
You & your care providers know your dog best - certainly far better than any Interwebz reader :yes:
Unlike DW I’m a pretty big fan of alternative treatments - sometimes they work very well (they just don’t get to be anything other than anecdotal so never any “scientific” breakthroughs).
Having said that, sadly osteosarcoma is not a disease that tends to have a good outcome no matter the treatment choices.
It’s one of those diseases that instead of focusing on the time that’s left, be glad that your dog has done so well up until the diagnosis (I suspect we are just very late with the diagnosis of osteosarcoma & the disease has been silently present for year(s)) & be as cheerful as your dog is 
It sounds as if you are doing everything right for YOUR dog at this time (amputation & chemo are no guarantee that you will buy your dog more than weeks to months; yes there are some longer term survivors but there are some major heartbreakers too).
There is always the chance that your dog will be exception to the predicted outcome.