Please have Dr. Couto's team look at the xrays. My bridge angel Loca was once diagnosed with bone cancer (not osteo but chrondrosarcoma). I had the xrays sent to Dr. Couto and he said that they were normal. Sent a second set, they were normal.
I used it with my beloved Beansy after she had her stroke and it seemed pretty good. I know it worked for me when i broke my arm, but didn't seem to work with my migraines. I agree that it's it's efficacy depends on the situation and the dog.