Featured Research

from universities, journals, and other organizations

Gastric bypass surgery may diminish knee pain in obese patients

Date:
March 14, 2014
Source:
American Academy of Orthopaedic Surgeons
Summary:
Gastric bypass surgery may diminish knee pain in obese patients with little or no osteoarthritis, according to new research. The study authors recommend that surgeons consider bariatric consultation for obese patients who have knee symptoms but lack advanced osteoarthritis or other conditions amendable to orthopaedic management.

There is a known link between elevated body mass index (BMI) and symptomatic knee osteoarthritis (OA). While patients who have undergone gastric bypass surgery (GBS) -- a procedure that closes off much of the stomach and causes food to bypass a portion of the small intestine─typically lose weight, the comparative impact of this weight loss on knee pain and function has not been measured.

The new study, "The Impact of Gastric Bypass Surgery Compared to Total Knee Arthroplasty on Knee Symptoms," presented today at the 2014 Annual Meeting of the American Academy of Orthopaedic Surgeons (AAOS), included two groups of patients: 20 GBS patients (16 women and four men) with a mean age of 52 years and a mean pre-operative BMI of 45.6 kg/mē, and 40 patients who underwent total knee replacement (TKR) for symptomatic OA.

The groups were matched two-to-one by age, gender and BMI. In both groups, knee symptoms were assessed preoperatively, as well as at six months and one year following surgery. Bariatric surgery patients reported significant improvement in mean knee pain (6.95 versus 2.30 points) and physical function (21.5 versus 7.05) at one-year follow up. When compared to patients who underwent TKR, the percentage improvement in mean pain scores was similar between the two groups at six months (49.9 percent versus 58.3 percent) and one year (62.7 percent versus 68.2 percent). The GBS group experienced a significantly greater percentage improvement in physical function at six months (66.3 percent versus 46.7 percent), and a similar, though marginally non-significant difference at one year (68.4 percent versus 51.5 percent).

Comparatively, GBS patients with self-reported OA had greater knee pain and worse function preoperatively when compared to those without OA, as well as a smaller percentage improvement in pain (63.5 versus 74 percent) and function (66.4 versus 72.9 percent) at final follow up. The study authors recommend that surgeons consider bariatric consultation for obese patients who have knee symptoms but lack advanced osteoarthritis or other conditions amendable to orthopaedic management.


Story Source:

The above story is based on materials provided by American Academy of Orthopaedic Surgeons. Note: Materials may be edited for content and length.


Cite This Page:

American Academy of Orthopaedic Surgeons. "Gastric bypass surgery may diminish knee pain in obese patients." ScienceDaily. ScienceDaily, 14 March 2014. <www.sciencedaily.com/releases/2014/03/140314093745.htm>.
American Academy of Orthopaedic Surgeons. (2014, March 14). Gastric bypass surgery may diminish knee pain in obese patients. ScienceDaily. Retrieved September 16, 2014 from www.sciencedaily.com/releases/2014/03/140314093745.htm
American Academy of Orthopaedic Surgeons. "Gastric bypass surgery may diminish knee pain in obese patients." ScienceDaily. www.sciencedaily.com/releases/2014/03/140314093745.htm (accessed September 16, 2014).

Share This



More Health & Medicine News

Tuesday, September 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

President To Send 3,000 Military Personnel To Fight Ebola

President To Send 3,000 Military Personnel To Fight Ebola

Newsy (Sep. 16, 2014) — President Obama is expected to send 3,000 troops to West Africa as part of the effort to contain Ebola's spread. Video provided by Newsy
Powered by NewsLook.com
Man Floats for 31 Hours in Gulf Waters

Man Floats for 31 Hours in Gulf Waters

AP (Sep. 16, 2014) — A Texas man is lucky to be alive after he and three others floated for more than a day in the Gulf of Mexico when their boat sank during a fishing trip. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

AFP (Sep. 16, 2014) — Since the arrival of Ebola in Ivory Coast, Ivorians have been abandoning their pets, particularly monkeys, in the fear that they may transmit the virus. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com
Study Links Male-Pattern Baldness To Prostate Cancer

Study Links Male-Pattern Baldness To Prostate Cancer

Newsy (Sep. 16, 2014) — New findings suggest men with a certain type of baldness at age 45 are 39 percent more likely to develop aggressive prostate cancer. 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