Evaluating the source and content of orthopaedic information on the Internet - The case of carpal tunnel syndrome

Background: The Internet has become a popular source of medical information for patients. Authors of health-related web pages are not required to adhe re to any standard for medical content or accuracy. The goal of the present study was to assess the type, quality, and reliability of information abou t carpal tunnel syndrome that is available on the Internet. Methods: The search phrase "carpal tunnel syndrome" was entered into five c ommonly used World Wide Web search engines. The search results then were gi ven as an ordered list of universal resource locators, or web-site addresse s. The top (first) fifty web sites from each of the five searches were comb ined to create a master roster of 250 web-site addresses. These web sites t hen were evaluated for authorship and content, and an informational value s core ranging from 0 to 100 points was assigned to each. Results: Thirty-three percent of the sites sold commercial products for the evaluation or treatment of carpal tunnel syndrome. An additional 30 percen t were commercial web sites that did not sell products. Only 23 percent of the sites were authored by a physician or an academic organization. Fewer t han half of the sites offered conventional information. Twenty-three percen t of the:sites offered unconventional or misleading information. The mean i nformational value of the web sites was 28.4 of a possible 100 points. Conclusions: The information about carpal tunnel syndrome on the Internet i s of limited quality and poor informational value. The public and the medic al communities need to be aware of these limitations so that the quality of medical information available on the World Wide Web can be improved.