22
Participants
Start Date
May 1, 2013
Primary Completion Date
December 30, 2015
Study Completion Date
January 1, 2017
hyaluronic acid with mannitol
single shot injection (Ostenil Plus®, TRB Chemedica SA, CH, 1800kD)
hyaluronic acid with sorbitol
single shot injection (Synolis®, Gebro-Pharma AG, CH, 2000 kD)
Placebos
single shot injection of saline, same volume
CHUV - Hopital Orthopedique, Lausanne
Brigitte Jolles, MD
OTHER