Featured Research

from universities, journals, and other organizations

Study Shows Increase Of Hip And Knee Replacements In The US

Date:
April 14, 2008
Source:
Wiley-Blackwell
Summary:
With the graying of America's Baby Boomer generation, arthritis is a growing health concern. Traditionally associated with the elderly, this common joint disease currently afflicts over 20 million men and women in the United States. To aggravate matters, arthritis is also prevalent among the overweight--which describes nearly 65 percent of our nation's adult population.

With the graying of America’s Baby Boomer generation, arthritis is a growing health concern. Traditionally associated with the elderly, this common joint disease currently afflicts over 20 million men and women in the United States. To aggravate matters, arthritis is also prevalent among the overweight—which describes nearly 65 percent of our nation’s adult population. Fortunately, treating the pain and disability of arthritis has been revolutionized by surgical joint replacements of the hips and knees. Unfortunately, as hip and knee replacements have become a more popular option, the toll on Medicare, private insurers and hospitals has escalated. Despite its huge implications for the healthcare system, the projected impact of joint replacements has attracted scant study.

To assess and address this issue, Sunny Kim, PhD, a researcher with the Robert Stempel School of Public Health at Florida International University, started with one of the largest databases of hospital procedures available: the Nationwide Inpatient Sample (NIS). Using the latest revision of international procedure coding, Dr. Kim identified joint replacement cases throughout the US and analyzed increases in surgeries and costs between 1997 and 2004. The April 2008 issue of Arthritis Care & Research presents hard-hitting numbers to back her conclusion: “the burden resulting from hip/knee joint replacement is not only substantial but also increasing at a steep rate.”

  • Among Dr. Kim’s significant, distressing findings:
  • In 2004, approximately 431,485 primary knee replacements were performed—a 53 percent increase from the year 2000. 225,900 primary hip replacements were performed in the US—marking a 37 percent increase for the same period.
  • In 1997, about 60 of primary hip replacements and 69 percent of primary knee replacements were performed on individuals between the ages of 65 and 84 years. Although elderly patients remained the main recipients, the number of joint replacement surgeries among the middle-aged, patients between 45 and 64 years, increased excessively—71 percent for hip replacements and 83 percent for knee replacements—in 2004.
  • Between 1997 and 2004, the hospital charges for joint replacements, both primary and revision surgeries, increased faster than the rate of inflation. While Medicare continued to provide the principal source of payment, compared with other sources of payment, the relative burden decreased. The burden on private insurance more than tripled in that 7-year span—from $1.1 billion to $3 billion for hip replacements and from $1.46 billion to $4.64 billion for knee replacements.
  • If current trends persist, nearly 600,000 hip replacements and 1.4 million knee replacements will be performed in the year 2015.

Reflecting on the rise in the numbers of joint replacements and in surgeries among younger patients, Dr. Kim raises decreased lack of tolerance for pain and increased acceptance of surgical safety, as well as the impact of obesity, as possible explanations. She also acknowledges the study’s inability to track the rates and costs of a less-invasive surgery for hip and knee replacements, performed on an outpatient basis for selected patients.

Calling for the creation of a national joint replacement registry as one key step, Dr. Kim stresses the need for urgent attention to the problems that come with the territory of this popular, radical arthritis treatment. “Public health education is critically important to reduce the proportion of people who are overweight as well as to manage arthritis at earlier stages,” she notes. “At the same time, given the steeply increasing trends of joint replacements and the expected number of joint revisions needed, the health care community should be prepared for this upcoming demand of surgical loads and its economic burden on government and private insurance systems.”

Journal reference: “Changes in Surgical Loads and Economic Burden of Hip and Knee Replacements in the US: 1997-2004,” Sunny Kim, Arthritis & Rheumatism (Arthritis Care & Research), April 15, 2008; 59:4, pp. 481-488.


Story Source:

The above story is based on materials provided by Wiley-Blackwell. Note: Materials may be edited for content and length.


Cite This Page:

Wiley-Blackwell. "Study Shows Increase Of Hip And Knee Replacements In The US." ScienceDaily. ScienceDaily, 14 April 2008. <www.sciencedaily.com/releases/2008/04/080414155247.htm>.
Wiley-Blackwell. (2008, April 14). Study Shows Increase Of Hip And Knee Replacements In The US. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2008/04/080414155247.htm
Wiley-Blackwell. "Study Shows Increase Of Hip And Knee Replacements In The US." ScienceDaily. www.sciencedaily.com/releases/2008/04/080414155247.htm (accessed July 31, 2014).

Share This




More Health & Medicine News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
Powered by NewsLook.com
At Least 20 Chikungunya Cases in New Jersey

At Least 20 Chikungunya Cases in New Jersey

AP (July 30, 2014) At least 20 New Jersey residents have tested positive for chikungunya, a mosquito-borne virus that has spread through the Caribbean. (July 30) Video provided by AP
Powered by NewsLook.com
Xtreme Eating: Your Daily Caloric Intake All On One Plate

Xtreme Eating: Your Daily Caloric Intake All On One Plate

Newsy (July 30, 2014) The Center for Science in the Public Interest released its 2014 list of single meals with whopping calorie counts. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

    Technology News



      Save/Print:
      Share:

      Free Subscriptions


      Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

      Get Social & Mobile


      Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

      Have Feedback?


      Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
      Mobile: iPhone Android Web
      Follow: Facebook Twitter Google+
      Subscribe: RSS Feeds Email Newsletters
      Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins