Viscosupplementation
A treatment that involves injecting a gel-like substance (hyaluronic acid) into a joint to supplement the natural synovial fluid, improving lubrication and cushioning.
Extended Definition
Viscosupplementation is a minimally invasive procedure primarily used to treat knee osteoarthritis, though it can be used in other joints as well. The treatment aims to restore the natural properties of synovial fluid that have been diminished by arthritis.
During the procedure, a healthcare provider injects hyaluronic acid directly into the joint space using a needle. This substance mimics the consistency of healthy synovial fluid, providing better lubrication between joint surfaces and acting as a shock absorber during movement. The treatment may also have anti-inflammatory effects and might stimulate the body’s own production of hyaluronic acid.
Different viscosupplementation products are available, varying in their molecular weight, concentration, and treatment schedules. Some require a series of 3-5 weekly injections, while others like Synvisc-One are administered as a single injection. The effects typically last several months, and the treatment can be repeated if beneficial. Many patients experience reduced pain and improved function, though results vary from person to person.
Related Terms
More Treatments Terms
View allCorticosteroid
A powerful anti-inflammatory medication similar to cortisol (a hormone naturally produced by the body) that can be injected into joints to quickly reduce swelling and pain.
Hyaluronic Acid
A naturally occurring substance found in synovial fluid that gives it its thick, gel-like consistency and lubricating properties. Also used as an injection treatment for joint pain.
Molecular Weight
The size of a molecule measured in daltons. In hyaluronic acid products, molecular weight affects how thick and long-lasting the injection is, with higher molecular weight typically providing longer relief.
NSAID
Non-Steroidal Anti-Inflammatory Drug - a type of medication that reduces pain, inflammation, and fever by blocking enzymes that produce inflammatory chemicals in the body.
Nerve Block
An injection of anesthetic near specific nerves to temporarily block pain signals. Used for diagnosis, pain relief, or before surgery. Effects last hours to months depending on medication used.