Navigation Links
Evidence of Benefit Lacking for Many Common Ways of Treating Osteoarthritis of the Knee
Date:10/4/2007

ROCKVILLE, Md., Oct. 4 /PRNewswire-USNewswire/ -- A new scientific review released today by HHS' Agency for Healthcare Research and Quality concludes that evidence of benefit is lacking for many common ways of treating osteoarthritis of the knee, including popular dietary supplement ingredients, a common surgical procedure, and injected preparations.

The review found that glucosamine and chondroitin, over-the-counter dietary supplement ingredients that are used widely because of their purported benefits to relieve knee pain caused by osteoarthritis and improve physical functioning, appear to be no more effective than placebos. A placebo is a harmless substance given to selected patients in a clinical trial that looks like the real drug or injection being studied, but which has no medical effect.

The review, which was requested and funded by HHS' Centers for Disease Control and Prevention, also failed to find convincing evidence of benefit from arthroscopic surgery to clean the knee joint with or without removal of debris and loose cartilage.

Published studies generally report that injections with hyaluronan preparations (substances that are intended to improve lubrication of the knee joint) improve scores on patient questionnaires used to measure pain and function. However, the evidence is uncertain because of variation in study quality and difficulty determining whether changes in scores translate into real clinical improvements for patients.

"Millions of Americans seek relief from the pain and reduced mobility caused by osteoarthritis of the knee," said AHRQ Director Carolyn M. Clancy, M.D. "However, they should work with their clinicians to decide the best course of treatment for them based on what has and has not been proven to work."

Osteoarthritis is a widespread, costly disease that wears away the cartilage cushioning the knee joint, causing pain and reducing mobility. Arthritic diseases, which include osteoarthritis, affect an estimated 46 million people in the United States, and at age 64 and older, one in 10 Americans is estimated to have osteoarthritis of the knee. Osteoarthritis and related arthritic conditions cost more than $81 billion a year in medical care, lost wages, and other expenses.

The authors, who were led by David J. Samson, M.S., associate director of the AHRQ-supported Blue Cross and Blue Shield Association Evidence-based Practice Center in Chicago, reviewed findings from 53 randomized clinical trials of glucosamine, chondroitin, and injections with hyaluronan preparations and 23 studies of arthroscopy. The review scrutinized individual studies concerned with these treatments' effects as well as meta-analyses that analyzed the combined evidence of groups of studies.

According to authors, better quality randomized clinical trials are needed to clarify whether these treatments are beneficial. However, given the aging of the population and increasing prevalence of obesity --- both risk factors for osteoarthritis of the knee -- "research on new approaches to prevention and treatment of osteoarthritis of the knee should be a high priority."

For a copy of Treatment of Primary and Secondary Osteoarthritis of the Knee, go to http://www.ahrq.gov/downloads/pub/evidence/pdf/oaknee/oaknee.pdf.


'/>"/>
SOURCE Agency for Healthcare Research & Quality
Copyright©2007 PR Newswire.
All rights reserved

Related medicine technology :

1. Hemispherx Presents Evidence of Ampligen Synergies with Existing Antivirals at International Avian Influenza Conference
2. Investigation Findings, Corroborated by Empirical Evidence of the Schisandra Berry as Cardio-Tonic in Traditional Chinese Medicine for Hundreds of Years, Support the Use of Schisandrin B in the Prevention and Treatment of IHD
3. Evidence of Nanoparticles Found in Plaque-Filled Arteries
4. Human Genome Sciences Reports Growing Evidence That Its TRAIL Receptor Antibodies Have Significant Potential in the Treatment of a Broad Range of Cancers
5. Abraxis BioScience Presents Data from Pre-Clinical Study That Provide Evidence for Chemotherapy-Induced Angiogenesis and Rationale for Combining nab-Paclitaxel (Abraxane) with Anti-Angiogenic Agents to Increase Tumor Response
6. British Journal of Cancer Reports Preclinical Evidence of Positive Effect of Rice Bran on Intestinal Cancer
7. Bio-Matrix Scientifics Dr. ONeill Sees University of Pittsburghs Published Study on Culture Blood-Forming Stem Cells from Human Fat Tissue as Supporting Near Term Benefits of Banking Adipose (Fat) Derived Stem Cells
8. First single breast cancer study to show significant survival benefit for women switching from tamoxifen to Arimidex
9. Geron Corp. Licensee TA Sciences Announces Landmark 7/07/07 Teleconference to Answer Questions About TA-65, Their Telomerase Activator With Proven Age Management Benefits
10. Medivations Dimebon Maintains Statistically Significant Benefit on All Five Efficacy Endpoints in Alzheimers Disease Trial After One Year of Therapy
11. Further Statistical Analysis of the Recent Phase III trial on Lead Product M6G Shows Additional Benefits
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/27/2017)... July 27, 2017  West Pharmaceutical Services, Inc. (NYSE: ... for the second-quarter 2017 and updated financial guidance for ... Second-Quarter 2017 Highlights Reported net sales ... the prior-year quarter. Net sales at constant currency (organic) ... EPS was $0.51, compared to $0.60 in the prior-year ...
(Date:7/26/2017)... SINGAPORE , July 27, 2017  Radium Medical Aesthetics, a ... LASEMD, designed to delay aging by effectively addressing several skin conditions ... the skin to become rougher and more fragile. The skin becomes ... the unavoidable exposure to the harmful UV rays from the sun ... hyperpigmentation. ...
(Date:7/26/2017)... YORK , July 26, 2017 The ... Annual Prix Galien USA Award Nominees. ... the Prix Galien Award recognizes outstanding biomedical and technology product ... To qualify, each candidate must be U.S. ... last five years and demonstrate tremendous potential to impact human ...
Breaking Medicine Technology:
(Date:8/18/2017)... ... August 18, 2017 , ... As an industry leader, ... webinar, they will present the line of epMotion automated liquid handling system. This ... can automate everyday pipetting tasks. , Ideal for scientists and lab technicians with ...
(Date:8/18/2017)... ... August 18, 2017 , ... Hernandez Insurance Agencies, ... communities throughout the greater DC region, is inaugurating a “New Leash On Life” ... animals and training them to be companions for veterans in need. , The ...
(Date:8/18/2017)... (PRWEB) , ... August 18, 2017 , ... ... and financial planning services to communities in east Texas, is launching a regional ... Tumor Foundation. , Founded in 1991, the Pediatric Brain Tumor Foundation (PBTF) has ...
(Date:8/18/2017)... Saint John, IN (PRWEB) , ... August 18, 2017 , ... ... services to communities in northwest Indiana, is campaigning in support of Campagna Academy in ... Formerly referred to as the “Hoosier Boys’ Town of Indiana,” Campagna Academy is a ...
(Date:8/18/2017)... ... ... The Golseth Agency, a Texas based insurance management and financial planning assistance provider ... organized to provide support to Christina Upchurch and her two children after the loss ... returned from out of town to find her husband passed away and their home ...
Breaking Medicine News(10 mins):