I had a very similar situation. Had initial left TKR done November 2023 by a surgeon who was the Surgical Director For Joint Replacement at a major teaching hospital. Incidently, this surgeon had performed a left TKR and bilateral hip replacements on my wife without post op complications. I expected some discomfort and swelling post op, but after 4-5 months of physical therapy and repeated examinations by the surgeon, who indicated that this was normal and that there was nothing wrong. He did however, recommend a Genicular Nerve Block, but my insurance company said the procedure was experimental and not covered. The out of pocket cost was too expensive. I returned to the surgeon and his comment was "Just live with it". Having worked in healthcare for almost 50 years, that comment was a "red flag" and I immediately sought a second opinion from a surgeon that specialized in TKR revision.
After an initial exam by the revision surgeon, he determined that the implant had not been properly balanced and that was the reason for the persistent pain and swelling. Arrangents were made for the revision for February 2025. The surgeon was going to attempt to balance the implant, but was unable to. We had discussed this scenario and if the balancing was not able to be done, he would explant the initial implant and replace it with a new one from a different manufacturer. Needless to say, that did the trick. No pain or swelling and I am 14 months post op and fully functional.
Definitely seek a second opinion with a surgeon that specializes in TKR revisions. It may take a little research, but well worth it. When a physician tells you to "live with it", seek a second opinion. I live in coastal NJ and am not familiar with revision surgeons in central Pa. Be persistent and good luck.