Yorkie dealing with rear leg amputation

Our Nigel, a 9 year old Yorkie a day after a left rear leg amputation. A week ago, our vet found cartilage cancer of his left upper leg. Surgery was on 1/13/22. He's up and getting around fairly well. He's a very sweet boy. We're hoping all the cancer is gone. We have a trusted vet, very competent. He takes care of our 6 Yorkies.