Hi @nellieo - Welcome to Connect! I think you will find a lot of kindred souls here. I had a TKR in 2017 and another one in January 2019. Thankfully, I didn't have that burning and stinging sensation but I've read of many people who did. I'm so sorry that you are still having it after nearly 9 months. That must be really frustrating. Here is a thread that might interest you:
https://connect.mayoclinic.org/discussion/unable-to-sleep-after-tkr/
Can you share more about how often you have the burning and what triggers it? Also, have you found anything that helps alleviate the sensation?
Wishing you the best!

Hello @nellieo, I'd like to add my welcome to @debbraw's. You may notice I moved your discussion and combined it with discussion already titled "burning after total knee replacement." I did this so you could meet some of the other members already discussing the topic you are asking about. If you are replying by email, you can find the new location of your discussion and other posts on this topic by clicking on VIEW & REPLY.

I had a tkr one year ago May 2018. Around month 6 I started developing stinging, achy, burning feeling on knee area. I had been referred to PT where therapist attempted to deal with pain to no avail. Surgeon referred me to a Physiatrist. Saw Physiatrist and diagnosed with CRPS (Complex regional pain syndrome) a nerve condition. Had two treatments where they inject the knee with numbing agent. It has definitely made a difference as I don’t feel the degree of pain I had prior to shots. Knee not 100% but pretty close as I still have a small amount of discomfort. Seek another opinion other then surgeon as his work is done with knee replacement. Hope this helps