Platelet Rich Plasma for Knee Osteoarthritis: When it works, when it does not work Is Knee Gel Injection the Right Solution for You? Promoting Synovial Fluid Production for Better Joint Health A gel injection for the knee helps improve joint lubrication when natural synovial fluid becomes thinner or less effective, which often happens with arthritis., This gel acts as a cushion and Natural Joint Lubrication: How to Keep Your Joints Healthy Liv Hospital Knee Gel Injections Clinic in Duluth GA