Dear Doctor: I’m a 66-year-old man whose right knee really hurts from arthritis. My sister keeps talking about something called prolotherapy. What is it, and can it help? Dear Reader: Prolotherapy is ...

Prolotherapy is a procedure that involves injecting a natural irritant into the soft tissue of an injured joint. Supporters believe that it may provide significant relief for joint or back pain. The ...

Knee osteoarthritis affects about half of us in older age. The cartilage that acts as a cushion between the bones wears away, and it hurts when the bones grind against each other. In many people, ...