knee replacement

The rate of older adults getting  knee-replacement surgery has more than doubled in the past 20 years, a new study finds, but the surgery's popularity has also led to increased rates of postsurgery infections and complications.

When Los Angeles Times columnist Steve Lopez, 61, went in for knee surgery last month, he thought it was no biggie. After all, half a million older Americans this year will do the exact same thing - get a worn-out, aching knee joint replaced.

More Americans than ever are getting their knees replaced.

When it comes to artificial hip and knee joints, new doesn't necessarily trump old.