l 4 and l 5 were rubbing. Steroids quit working. Then i discovered PRP. He injected it, told me to take it easy for 2 weeks. I did not , and been pain free for years. My friends did not want to pay cash so they chose surgery and it has not worked. Oh well. I tend to not want surgery. Yes, it can be expensive but it has taken care of my arthritis, and it worked on my back pain. Every am i hit the floor, stretch and go play golf or garden or bike.