About six months ago I woke up one morning and it felt like someone had taken a hammer to my left knee. I could barely hobble around with much pain. I figured over time the pain would go away but after six months later my knee was slightly better but I dragged my leg leg around using a cane. I didn't want to see a doctor as I knew what he would put me through and I'm 76 years old and don't need anymore stays in hospitals, I've had my share of that. I kept seeing the commercial for the Willow Curve I think its called for around $600. Looking that up refered me to this Tendlite so I figured I had nothing to lose for less than $200 and a 30 day return period from Amazon.