Hi Vince
I am so sorry you have experienced this after your surgery.
I am almost 7 weeks out from a Mako robotic TKR on my right knee. Before my surgery my surgeon went over in great detail ALL the horrendous possibilities the were possible results of this surgery. He explained about infections and neuropathy and damage to blood vessels so explicitly that when he asked if I still wanted to do this, I hesitated and weighed how I was feeling and how I wanted to feel. The first 3 1/2 weeks I wasn't sure I made the right decision. The pain was horrendous. I had PT at home minimally due to pain level. Nerve pain that often felt like burning knives slicing the skin all over my leg so bad I couldn't have a light sheet on the leg.
When I started going out for PT I saw they had a CBD cream and they gave me a sample. I truly believe that massaging that cream in helped wake up some of those nerves, reduce the swelling around others and break down some of the scar tissue.
At 7 weeks I am feeling glad I did the knee because it is already way better than prior to surgery. Now I must decide whether to do the left knee which is not as bad as the right was but is bone on bone.
Stories like yours will make me think very hard about it. Was I just lucky?
I hope an answer comes for you, that you get relief from pain and numbness.