Osteoarthritis Quiz: Ace Your Exams

A 64-year-old man presents for follow-up for right knee pain, stiffness, and limited range of motion that has been present for one year. He has been using over-the-counter topical analgesics to manage his pain. He has been referred to physical therapy previously with inconsistent follow-up. He is now noticing that he is not able to walk as far due to the pain. Medical history is significant for hypertension and peptic ulcer disease. Temperature is 37°C (98.6°F), pulse is 82/minute, respiratory rate is 16/minute, blood pressure is 138/75 mmHg, and oxygen saturation is 99% on room air. BMI is 29 kg/m². Right knee examination is notable for mild swelling of the knee, tenderness to palpation along the medial joint line, limited range of motion, and crepitus. There is no erythema or warmth. Radiograph of the right knee is shown below, revealing Stage 2 osteoarthritis. What is the best next step in management?
 
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