Gel One Worcester MA Knee Pain Manchester Knee Osteoarthritis Boston MA 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 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, Can you avoid knee surgery with viscosupplementation? Peak Health and Wellness What Are the Different Types of Knee Injections? (Gel, PRP & Stem Cells) Knee Gel Injections: Benefits and Effectiveness