Our 9.5 year old Corgidor (Corgi/Lab) rescue, Medli, has an inoperable cancer tumor on her right front leg that pains her. She used to jump up into the big trees and would also chase after squirrels as they traversed the back wood fence. She hurt her back left knee getting up into the tree in 2019. She was 20 lbs overweight, and the vet put her on Gabapentin, and a diet. Both helped, but the damaged knee never completely heeled. She liked to jump up into the truck, onto the couch, chair and bed...