Ketorolac Versus Triamcinolone Knee Injections for Osteoarthritis

Osteoarthritis is a disabling disease of the joint spaces and has a high impact on society due to the amount of people who are affected by the disease. Nonoperative management is a mainstay of therapy in most patients. Ketorolac tromethamine and triamcinolone acetonide intra-articular knee injections will be compared in a prospective, double-blinded, randomized trial in subjects with knee osteoarthritis. Subjects will be enrolled from the Orthopaedics Clinic based on inclusion and exclusion criteria. Intra-articular knee injection of ketorolac tromethamine or triamcinolone acetonide will be performed under ultrasound guidance. Multiple outcome measures will be performed throughout the six month period of follow-up. The investigators predict ketorolac tromethamine will have a longer duration of pain relief when compared to triamcinolone acetonide. The investigators predict there will be no differences between the two intra-articular knee injections in terms of function using validated scoring instruments.