After being informed about the study and potential risks, all patients giving written informed consent will be chosen for eligibility for the study entry. At day 0 (before intra-articular injection), patients who meet the eligibility criteria will be randomized in a double-blind manner (participant and investigator) in a 1:1 ratio to Betamethasone (Diprospan 1 ml) or Triamcinolone acetonide (40 mg) single intra-articular injection
The purpose of this study is to compare the efficacy of Intra-articular corticosteroid injection between Betamethasone (Diprospan) and Triamcinolone acetonide for treatment of knee osteoarthritis