Gel injections

I have a very painful knee due to osteoarthritis. There is also some swelling around the knee. I had one cortisone shot and the pain went away for a while but I had a really bad headache for days. I also have osteoporosis and need to avoid steroids. I am considering having a Hyaluronate injection but don't know much about them. Would love to hear anyone's experience with this course of treatment.