I, too, am one of the 25% with continuing pain after 7 months. Having more pain after surgery than before is hard to live with without bitterness. Knee surgeon only says "Each patient is different". He finally 'dismissed' me and referred me to a pain management doctor. Next week I am to get a genicular nerve block. I'm told if that works (I feel no pain), a follow up 'radio frequency ablation of the nerves' will be scheduled. Basically this is killing my nerve cells. I'm told it lasts from 2 months to a year. So this is my future? returning every few months to kill my nerve cells when they grow back. Sad.
I asked the original surgeon for an MRI because I think something is wrong with the apparatus. My knee curves in more than original knee and most of the pain begins at tibial component area. I still have inflammation and the right knee area is visibly larger than left knee area (from inflammation or is apparatus too big?). He told x-rays and says everything is fine!
Well, I'll post again after surgery to see if pain improves.