Before surgery Roger weighed around 52 lbs.   I don’t know what he weighs now.  He is a pretty slim guy who is in really good shape.  I feed him fresh food and will continue to do so to make sure his weight remains good.  
For pain protocol the doctor instilled nocita injection at the time of closure of the wound  to provide a sustained release of 72 hour bupivacaine blockade.  He received 7 days worth of galliprant (NSAID) once a day.  7 days of the antibiotic Simplicef (Cefpodoxime Proxetil) which he has now finished. 7 days of Neurontim (Gabapentin) twice a day.  He hasn’t seemed in pain so he has one pill left.   He also received a large amount of trazadone to keep him calm if necessary.   I have not used any trazadone in two days but will give him 50 mg on Sunday morning when we go back to the doctor.   
He also had his right front paw and leg get swollen from the catheter they put in higher up his left front leg.  The swelling finally appears to have gone down but now he keeps licking at that wound so I have to keep the plastic cone on him.   I was having great success with a surgical shirt I bought for him for dogs with amputation surgery.   Unfortunately, the surgical shirt does not keep him from being abe to lick the front leg catheter spot. 
thank you for your positive thoughts and advice.  For Roger everyday for the most part has shown improvement.  There are days were he seems less active or happy then he was the day before but then he seems to come back the next day with more energy.  

We went to the vet yesterday for the wound on Roger’s upper left leg.   It had gotten much worse.  They removed some dead skin and put a full leg bandage on him covering his paw up the entire length of his leg.  It is difficult for him to get around.  We have to go in for daily bandage changes. The good news is that the testing came back.  They confirmed grade 2 soft tissue sarcoma.  They confirmed not bone tumor.  The lymph node they took out was clean and the doctor said with the amputation they got very large margins.  So it was really some of the best news we have received. Now we just need to get this wound fixed.   We just had our second bandage change and there is improvement but we are still on daily bandage changes.  The amputation site is healing great and Roger seems to have forgotten about it.  

Thank you for the responses and encouragement.  

You absolutely read correctly.   It is now the sore in his front left leg causing all the problems.  He now sometimes walks on two legs.  

Sunday we got another bandage but the doctor did something different and now have more antibiotics so bandage change every three days.  So we have a bandage change on Wednesday.   The sutures should be taken out on Wednesday from his amputation site but I think we will still have the front left leg bandage for awhile.  

Roger is getting better but I think the bandage on top of the amputation is a lot.  The strange thing is he is not sleeping in any of his usual places.  He used to sleep in his bed right next to my bed every night.   He doesn’t even come into my bedroom anymore at all and he doesn’t sleep in any of his beds.   Is that normal?   Will that change?

Thanks. 

Roger had his bandage change yesterday.  The doctor said the skin is continuing to granulate well and is healing normally.  He continued to “pack” it with something to help the healing process. He was still not ready to have the bandage come off.  We have another bandage change on Wednesday.  The doctor said maybe another two weeks.  Roger continues to get better but having the front leg bandaged as well as the back leg amputated affects his mobility.  With that being said we do outside 3-4 times a day to go potty and we are out for about 10 minutes of walking or so.  I am looking forward to getting this bandage off but I am getting discouraged.  The last time he had a bandage like this on and this big was after the biopsy and as far as I am concerned the bandage never came off we just amputated that leg.  

Thank you so much for your encouragement.   I was so sorry to hear about the disappointing reunion you had with your cat.  I had been thinking all weekend about him and hoped he was doing well.  I do know it’s hard seeing them like that. I am hoping the best for you two.  

With regards to the wound.  The doctor took a picture to show me.   But honestly I am very squeamish when it comes to stuff like that and I already had to deal with a drain, Roger’s huge sutures and the wound before we got into the doctor…so I declined to look at it.  I don’t know anything medical so I don’t think it would have helped me.  

The doctor thinks the bandage is best and I tend to agree because Roger can be sneaky with the cone and donut and I really don’t want to go through this again.  I don’t think the bandage will come off Wednesday and think he said probably two more weeks.   Also, he said something about he doesn’t think surgery will be necessary on the wound and I was surprised because that was the first time I have heard of that…so that also pushed me more to be okay with the bandage longer.  

Will be checking your posts for updates on your cat.