[The application of sodium hyaluronate in joint diseases].

Objective: To review the physiological function of sodium hyaluronate in joints and its clinical applications.

Methods: Many literatures were reviewed and analysed on therapeutic mechanism and the application foreground of sodium hyaluronate.

Results: Extrinsic sodium hyaluronate plays an important role in improving synovial fluid and protecting cartilages as well as suppressing inflammation, so it is used in the treatment of joint diseases such as knee osteoarthritis, rheumatoid arthritis or temporomandibular osteoarthritis.

Conclusion: Sodium hyaluronate possesses a good applied prospect in joint diseases.