Hyaluronic acid

Injections with hyaluronic acid can be a therapeutic option for the symptomatic management of some subtypes of osteoarthritis, especially in joints such as the knee. Hyaluronic acid is a substance naturally present in the synovial fluid of the joints, and is responsible for lubricating and cushioning joint movement.

In patients with osteoarthritis, a decrease in the concentration of hyaluronic acid in the synovial fluid has been observed, which may contribute to cartilage degeneration and increased inflammation and pain.

Injections with hyaluronic acid are intended to partially replace this substance and improve the quality of the synovial fluid, which can relieve pain and improve joint function. In addition, it has been observed that hyaluronic acid may have anti-inflammatory and chondroprotective properties, i.e. it may help slow the progression of osteoarthritis.

There are different types of hyaluronic acid used in infiltrations for osteoarthritis, with different characteristics in terms of viscosity and duration of action.

  • Low molecular weight hyaluronic acid: has a greater penetration and diffusion in the joint tissue, which allows it to act more quickly and effectively in reducing pain and inflammation.
  • High molecular weight hyaluronic acid: has a higher viscosity, which allows it to provide greater protection and lubrication in the joint, reducing friction and pain.
  • Cross-linked hyaluronic acid: this is a form of hyaluronic acid that has been chemically modified to increase its stability and prolong its effect on the joint.