Overview Use of Synvisc® in Knee Osteoarthritis - Survey on Practice Status: Completed Trial end date: 1969-12-31 Target enrollment: Participant gender: Summary Study of prescription methods in everyday medical practice, tolerance profile and effect of Synvisc® until six months of follow-up. Details Lead Sponsor: Boehringer IngelheimTreatments: Hyaluronic AcidHylan