Hello, I also have a failed knee replacement. The surgeon did multiple tests and the bone scan revealed an occult fracture of my lateral tibial plateau which was inoperable. I could not walk more than 100 feet before I had to lean and take all weight off the affected leg. It would take me three separate trips to make it through the grocery store. Last fall I had a peripheral nerve stimulator placed in my affected leg which completely blocks the pain. I can walk my dog, walk to the grocery store and through the store. I’ve even returned to work