Yeah, yeah, I've seen the negatives, and seen the positive results on several dogs that the same vet treated. My dog's turnaround at nearly 14 years old, was remarkable. Weight increased from 62 pounds back to his lifelong 73 pounds, his movement improved immensely, and his general comfort increased, too.
As far as my shoulders go, the physical therapist idiots I've seen managed to take my shoulder from a minor pain most days, with a couple of major episodes a year, to a moderate pain most days and major pain episodes every month. I told them over and over again, that any cold drafts, ice, etc, make it worse, almost immediately. They started out with ultrasound, and heated towels and it would start getting better, then after two weeks or so, they would start with the cold packs, and no matter how many times I would tell them, they would insist on continuing. At least the first guy admitted at the end, that the cold was a mistake, the second wouldn't even do that. He wanted me to keep up the treatments, out of pocket, at $70 bucks a pop. He had me so messed up I couldn't sleep more than about 15 minutes at a time.
The doctors I've been to can't even decide what is wrong with the left one. Impingement, tendonitis, bursitis, split tendon, etc have all been guessed. I can let the surgeon go in and "look around", for about 2000 bucks out of my pocket, and spend 6 weeks in a sling, with no real guarantee of diddley being fixed..
I think I might try a few accupuncture treatments at the one doctor's office, and see what happens. At this point, I figure it's worth a shot.