I am a little over 2 years post partial knee replacement. In August I had "Coolief" procedure done as I was still in daily pain (20 months post op at that time). The procedure itself was very painful, but after about 2 weeks I had about 80% pain relief, so I'm calling it a success. I still have pain, but am able to walk with my friend again and go to the gym. At 44 yrs old I'm happy that this will hopefully prolong the need for a total knee replacement. (As a side note, I had been on prescription diclofenac for about 2 years because of knee pain and it killed my stomach to the point that I needed to have gastrectromy and bypass. Now I can only take Tylenol or opiods for pain.)