Viscosupplementation with hylan G-F 20 in patients with osteoarthrosis of the knee
2010
Viscosupplementation (VIS) is one of several treatment modalities for osteoarthritis of the knee. It is useful in the treatment of osteoarthritis when other methods of conservative care have failed and it may be a safer method of treatment than oral chemical therapy which can have significant side effects with even short-term usage. The biochemical effects of hyaluronic acid are incompletely understood, however there are several accepted modes of action which result in a positive clinical effect on the function of the knee joint. There is some evidence that hyaluronic acid preparations with a higher molecular weight may be more beneficial to the patient. It is commonly used after arthroscopic meniscectomy and or debridement of the knee in a patient with chondral disease. The clinical effects have been well documented in multiple studies in patients with mild to moderate osteoarthritis in study groups before or after arthroscopic surgery of the knee. Adverse events do occur and are easily treated with only rare case reports of systemic effects. Furthermore, there is some evidence that VIS can prolong the need for total knee arthroplasty in the older patient as well.
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