Drives Me Crazy

I had my tkr 10 weeks ago and it also was bone on bone so can't honestly see how cycling can cure it. I also need my right knee done but not ready to endure more surgery at present maybe in 12 months time but certainly not yet

by your post, sounds as if your first tkr was NOT bone on bone???  if not , why the surgery?  Mine was bone and bone and I wish I had never had this surgery.  I would love to ride a bike, by the way, but can't go full round on the pedals, yet, and Im 4 months post op yesterday.  Im  not a fan of TKR's. 

Everyone is different and experiences pain differently. My wife's doctor told her (she was also bone-on-bone) that when the cortisone injections don't help anymore and the pain is so bad that you can't walk, it's time for a knee replacement (partial or total). 

Some people swear by Hyaluronic acid injections but her doctor just poo-poos them and her medical plan won't pay for them.

I don't know what to tell you about riding a bike. Bicycle riding is low stress on knees but whether it helps with pain is a new one on me. You could always give it a try; your knee(s) aren't going anywhere. But the bottom line is how your knees are affecting your walking and how much pain you are experiencing. You can't bicycle everywhere. Knee replacement is a "go" when everything else fails 

I was bone on bone for a couple of years (I had a heart attack and they didn’t want to do the surgery for at least a year).   I was told for exercise to ride a bike as it would also help build up knee muscles.   I ended up putting off the surgery for a year because while I couldn’t walk a mile I could ride and ride.   And then literally, one day I came home from riding and my knees told me that was it...so I scheduled the knee surgery.   For me it only got me another year.  

Hi I had a large meniscus tear in my mid 20s where I ended up having a arthroscopy removing most of the cartilage leaving it bone on bone. In my early 30s I had an X-ray which identified osteoarthritis so I had the usual steroid injections which had no effect what so ever. In my mid 30s I had an arthroscopy again and I was told that it was very severe and I needed a kne replacement but because of my age they didn't want to do it. To be fair I didn't want them to do it either. I took up cycling and I never got any arthritic pain only if it was really cold. I managed for 11 years with no problems, it was quite deformed but didn't give me any issues. The past year though I started taking a lot of pain killers and it became unbearable so I had the op last September. So it does work to a point and it put the op off for a considerable amount of time. 

TKR's are not always a perfect solution to knee pain. Some folks swear by physio, exercise and manipulations. I'm better than I was prior to bilateral TKRs however each change and alteration of our skeleton and muscles, ligaments, nerves etc. can come with another set of challenges. Think about the positives and the negatives. Research then decide. I put my op off for 7 years. I'm glad I waited until I was almost immobile. Good luck.