April 2017

HHS data validate KOOS JR. survey

Investigators from the Hospital for Special Surgery (HSS) on March 14 presented research at the 2017 Annual Meeting of the American Academy of Orthopaedic Surgeons (AAOS) in San Diego that confirms a seven-question survey developed at the Manhattan-based center is a valid and efficient tool for assessing patient outcomes following revision total knee replacement.

The survey, the KOOS JR. (Knee Injury and Osteoarthritis Outcome Score), is significantly shorter than the older 42-question knee replacement survey and has already been adopted by Medicare for its primary joint replacement bundled payment program.  In the study presented at the AAOS meeting, HSS researchers looked at the results of 314 patients who underwent revision surgery following total knee replacement between May 2007 and December 2011 and completed KOOS JR. patient-reported outcome measure surveys before surgery and two years later. The KOOS JR. measures proved to be as valid, and have as much internal consistency, external validity, and other measures of reliability in determining outcomes for these patients as they did in patients who had primary total knee replacements.

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- Emily Delzell

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