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The Ottawa Knee Rules accurately identified fractures in children with knee injuries

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Q In children presenting to the emergency department (ED) with a knee injury, how accurate are the Ottawa Knee Rules (OKR) in identifying knee fractures?


Embedded ImageDesign:

blinded comparison of the OKR with knee x rays.

Embedded ImageSetting:

5 urban academic paediatric EDs in Canada.

Embedded ImagePatients:

750 children aged 2–16 years (mean age 12 y, 59% boys) who presented to the ED with an acute injury to the knee sustained in the preceding 7 days and had evidence of bony injury to the knee on physical examination. Exclusion criteria: isolated injuries to the skin, altered level of consciousness, multiple distracting injuries, metabolic bone disease, underlying …

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  • For correspondence: Dr B Bulloch, Department of Emergency Medicine, Children’s Hospital, Winnipeg, Manitoba, Canada.

  • Source of funding: Children’s Hospital Foundation of Manitoba, Inc.