Hi @lindalockie, sorry to hear about the pain. I wasn't aware of the use of a tourniquet for knee surgery. I found an article that may shed some light on the why the pain...

Effects of Tourniquet Use on Quadriceps Function and Pain in Total Knee Arthroplasty
-- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4258487/

Why I stopped using a tourniquet for total knee replacement
-- https://www.yourorthomd.com/orthopedic-knowledge/why-i-stopped-using-a-tourniquet-for-total-knee-replacement

Have you thought about alternative methods for helping with the pain? There is a great discussion on Connect that may provide some help for your pain here:

> Groups > Neuropathy > Myofascial Release Therapy (MFR) for treating compression and pain
-- https://connect.mayoclinic.org/discussion/myofascial-release-therapy-mfr-for-treating-compression-and-pain/