Joint fluid fills the small space between the ends of bones and acts like a natural lubricant. The synovial membrane creates this thick, silky fluid using long molecules that hold water and give it a Say Goodbye to Knee Pain With Knee Gel Injections Gel injections (also called viscosupplementation) are used to treat joint pain from arthritis, especially in the knee. The gel acts as a lubricant and shock absorber inside the joint, helping reduce friction, THE SECRET SAUCE USED TO PREVENT KNEE REPLACEMENT SURGERY Physical therapy Care in Nutley Nutley Chiropractor Options Rehab Knee Gel Injections Clinic in Duluth GA