@gardeningjunkie It does sound like there are options when and if you decide to have the TKR. For now though if you are not in a lot of pain it sounds manageable. Keep exercising it as much as you can, I saw tremendous improvement when I did. Also, it really is best to not wait until you are in unbearable pain, rehab is more difficult then. I was in horrible pain before I finally chose to have my first TKR. I definitely wish I had not waited for so long.
Your garden kneeling bench sounds interesting so I checked Amazon. Is it the one made by TomCare? I do not garden, I really do not like being outside where there are bugs (shudder) but I could use for it in the house too.