This rating is specifically for the Osteoarthritis Center at arrowhead health comedy particularly Dr Vossler. This program is amazing for people who have osteoarthritis in their knees. I had a basketball injury many many years ago and have not found any relief or comfort since. They do these knee injections, a series of 3 to 5 and I have never felt so much relief over the past 15 years as I do after completing this program. Dr. V is an expert in this practice and they use state of the art technology including a camera to see where the needle is going in your knee. This is a great alternative to need replacement surgery. I highly recommend it to anyone who is suffering from knee pain due to osteoarthritis.