Hello @afladland, Welcome to Connect. I'm sorry to hear you are dealing with the calf pain and numbness in the foot following your knee replacement. I think it's still early in your recovery and it sounds like you are doing OK except with the calf pain and numbness in the foot. I had pain around the knee following my TKR but did not experience the pain or numbness you have. While we wait for other members to respond with their experience, I thought I would share this Mayo Clinic page that may be what you are experiencing.

"Mayo Clinic is investigating infrapatellar saphenous nerve neuroma as a source of pain after total knee arthroplasty. About 20% of patients who have a total knee arthroplasty are dissatisfied with the result, often due to residual pain. "
-- Saphenous nerve neuroma after total knee arthroplasty:
https://www.mayoclinic.org/medical-professionals/orthopedic-surgery/news/saphenous-nerve-neuroma-after-total-knee-arthroplasty/mac-20482753.
You may also find the following article on the topic helpful.
"Neuropathic pain is an underestimated problem in patients with pain after TKR. It peaks at between six weeks and three-months post-operatively. However, from these data we were unable to predict which patients are most likely to be affected."
-- The natural history of pain and neuropathic pain after knee replacement:
https://online.boneandjoint.org.uk/doi/full/10.1302/0301-620X.96B9.33756.
When is your appointment with the neurologist? Can you let us know what you find out?