Use of Synvisc® in Knee Osteoarthritis - Medico-economical Study

Use of Synvisc® in Knee Osteoarthritis - Medico-economical Study (U.S.A.G.E. Médico-Economique)

The USAGE study aims at assessing on a long-term period (two years in average) the outcome in clinical or economical term of patients with knee osteoarthritis (OA) treated or not with Synvisc®, in the 1139.4 clinical trial.

Inclusion Criteria:

• Patients have already been followed up on a nine-month period in a pragmatic medica-economical clinical trial (BI Trial No.: 1139.4)

Exclusion Criteria:

• none