DEAR DR. ROACH: I’m 80 and in very good physical shape. I walk 10-20 miles or more on hiking trails weekly, even though I have a pacemaker. I fell down our stairs hauling boxes and hurt my knee. I ...

Dear Dr. Donohue - About four months ago, a bulge appeared behind my right knee. I saw a doctor. He poked around and finally said it was a cyst. He told me to put a hot, wet towel on it. I did this ...