I was scheduled for a knee replacement and gave hyaluronic acid a try. After the first injection I stopped taking pain killers and NSAIDs. Three years later and without another hyaluronic acid injection, I’m still pain free and still walking on the factory original knee.
I can say one thing about Hyaluronic acid, almost every competitive cutting horse in the world has had it injected into their rear hocks when they get sore. It sure solves that problem, and it’s injected with a long needle in between the bones of the joint.
Most trainers inject their young horses in training before they get real sore, since if they do, the horse will avoid hard stops which is the ends a competitive career.
By the way, I have good knees, 65 still run even after having large numbers of horses on top of me. I’m also not very big which helps and never quit doing a daily workout.