It’s a quiet morning. You lace up your shoes, step outside and begin a brisk morning stroll. But as you take those first few steps, there it is, a faint grinding noise, almost like the crunch of ...

Dear Dr. Gott: One year after having had both knees replaced, any pain I previously had is gone. Problem solved? No. A few weeks (after surgery) that turned into months, and now one year later, my ...