You stated that your doctor did not want to do a TKR due to your age. How old are you?I am 52 and right now trying to put off any additional knee surgery as long as possible. The past two months, my knee has not been that terrible, then again I am only working about 25 hours a week. Come September, I will be back to a 45 hour week so who knows what will happen. My doctor is not pushing me into surgery at all. We are just trying to discuss all options in case I "hit a wall." At this point, the doctor and I are discussing TKR or PKR. My mri indicates that while I am not the "ideal" candidate for a partial, it may still be possible. When I finally decide to go for a replacement, the doctor would order a bone scan to determine if there are additional hot spots in other compartments. That would help decide whether I am a candidate for a partial. If I did go for a partial, the bone scan would be used to create a semi custom orthosis.
Why not just do a total knee? I had patella-femoral joint replacement and ended up with total knee just a year later. If so much of the joint is in bad shape, I would imagine the lateral side is not so good either. I would ask if total knee might be better. And as I always recommend... get a second oppinion. t