Thanks for the joint pain info.
I had HA injections twice , the first set worked better than the second set. The studies show it reduces pain But the meta analysis says the pain reduction doesn’t meet some vaguely defined level of significance . The alternatives are nsaids which cause ulcers and surgery which does nothing and costs 20000 dollars. Knee replacement can cause ossification of the muscles and tendons which makes the patient unable to walk ever again. I know someone who had a knee replacement at HSS in NY and is still in a wheelchair.