Courtesy, <a href="" target="_blank">intuitives</a>

If your knees don’t hurt yet, good.

But chances are they will. Arthritic knee pain hits nearly half of us by 85.

Can orthotics -- wedge-shaped insoles -- help? They change your knees weight bearing load, but is that enough?

Watch this week's Ask Dr. Sandy for the details on a study that answers these questions.