A meta-analysis carried out by Carsten Moser of the Grönemeyer Institute for Microtherapy and Peter Wehling of the Molecular Medicine Foundation has found out that most of the therapies for knee osteoarthritis (OA) are ineffective, some of them being even risky. Another finding was that often, prescribed anti-rheumatic drugs do no good and have side effects. Not even a single standard treatment was found for the disorder. The researchers emphasize the need for a plan that focuses on individual treatment based on a comprehensive diagnosis of symptoms of each patient.