NCEMI eTools
Ottawa knee rules
Decision rule for ordering knee x-rays in adults after acute trauma
Any "True" answer result in "Do x-ray"
Result:
Calculation requires an answer to the question:
"Unable to bear weight immediately and in ED?"
Unable to bear weight immediately and in ED?
True
False
Tender on patella?
True
False
Tender on fibular head?
True
False
Age over 55?
True
False
Unable to flex more than 90 degrees?
True
False
Calculate
Copyright 1995-2004 by National Center for Emergency Medicine Informatics. All Rights Reserved.