This Day On The Street
Continue to site right-arrow
ADVERTISEMENT
This account is pending registration confirmation. Please click on the link within the confirmation email previously sent you to complete registration.
Need a new registration confirmation email? Click here
Stocks Under $10 with 50-100% upside potential - 14 days FREE!

Study: 2 percent of Americans have new hips, knees

By MARILYNN MARCHIONE

It's not just grandma with a new hip and your uncle with a new knee. More than 2 of every 100 Americans now have an artificial joint, doctors are reporting.

Among those over 50, it's even more common: Five percent have replaced a knee and more than 2 percent, a hip.

"They are remarkable numbers," said Dr. Daniel J. Berry, chairman of orthopedic surgery at the Mayo Clinic. Roughly 7 million people in the United States are living with a total hip or knee replacement.

He led the first major study to estimate how prevalent these procedures have become, using federal databases on surgeries and life expectancy trends. Results were reported Tuesday at an American Academy of Orthopaedic Surgeons conference in New Orleans.

More than 600,000 knees and about 400,000 hips are replaced in the U.S. each year. But until now, there haven't been good numbers on how many people currently are living with new joints. The number is expected to grow as the population ages, raising questions about cost, how long the new parts will last, and how best to replace the replacements as they wear out over time.

Why the boom?

"People are aware that they're a success" and are less willing to put up with painful joints, Berry said.

The term "replacement" is a little misleading, said Dr. Joshua Jacobs, chairman of orthopedic surgery at Rush University Medical Center in Chicago and president of the orthopedic surgery association. What's replaced is the surface of a joint after cartilage has worn away, leaving bone rubbing against bone and causing pain and less mobility.

In a replacement operation, the ends of bones are removed or resurfaced and replaced with plastic, ceramic or metal materials.

Arthritis is the main reason for these operations, followed by obesity, which adds stress on knees and hips. Baby boomers are wearing out joints by playing sports and doing other activities to avoid obesity. Knee replacement surgeries have more than tripled in the 45-to-64 age group over the last decade and nearly half of hip replacements now are in people under 65, federal numbers show.

1 of 3

Select the service that is right for you!

COMPARE ALL SERVICES
Action Alerts PLUS
Try it NOW

Jim Cramer and Stephanie Link actively manage a real portfolio and reveal their money management tactics while giving advanced notice before every trade.

Product Features:
  • $2.5+ million portfolio
  • Large-cap and dividend focus
  • Intraday trade alerts from Cramer
  • Weekly roundups
TheStreet Quant Ratings
Try it NOW
Only $49.95/yr

Access the tool that DOMINATES the Russell 2000 and the S&P 500.

Product Features:
  • Buy, hold, or sell recommendations for over 4,300 stocks
  • Unlimited research reports on your favorite stocks
  • A custom stock screener
  • Upgrade/downgrade alerts
Stocks Under $10
Try it NOW

David Peltier, uncovers low dollar stocks with extraordinary upside potential that are flying under Wall Street's radar.

Product Features:
  • Model portfolio
  • Stocks trading below $10
  • Intraday trade alerts
  • Weekly roundups
Dividend Stock Advisor
Try it NOW

Jim Cramer's protege, David Peltier, identifies the best of breed dividend stocks that will pay a reliable AND significant income stream.

Product Features:
  • Diversified model portfolio of dividend stocks
  • Alerts when market news affect the portfolio
  • Bi-weekly updates with exact steps to take - BUY, HOLD, SELL
Real Money Pro
Try it NOW

All of Real Money, plus 15 more of Wall Street's sharpest minds delivering actionable trading ideas, a comprehensive look at the market, and fundamental and technical analysis.

Product Features:
  • Real Money + Doug Kass Plus 15 more Wall Street Pros
  • Intraday commentary & news
  • Ultra-actionable trading ideas
Options Profits
Try it NOW

Our options trading pros provide daily market commentary and over 100 monthly option trading ideas and strategies to help you become a well-seasoned trader.

Product Features:
  • 100+ monthly options trading ideas
  • Actionable options commentary & news
  • Real-time trading community
  • Options TV
To begin commenting right away, you can log in below using your Disqus, Facebook, Twitter, OpenID or Yahoo login credentials. Alternatively, you can post a comment as a "guest" just by entering an email address. Your use of the commenting tool is subject to multiple terms of service/use and privacy policies - see here for more details.
Submit an article to us!

Markets

DOW 18,053.71 +23.50 0.13%
S&P 500 2,088.77 +6.89 0.33%
NASDAQ 4,806.8590 +33.3870 0.70%

Brokerage Partners

Rates from Bankrate.com

  • Mortgage
  • Credit Cards
  • Auto

Free Newsletters from TheStreet

My Subscriptions:

After the Bell

Before the Bell

Booyah! Newsletter

Midday Bell

TheStreet Top 10 Stories

Winners & Losers

Register for Newsletters
Top Rated Stocks Top Rated Funds Top Rated ETFs