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CompletedNCT00652353Updated Mar 19, 2013

Mnemonic for the Ottawa Ankle Rule

An interventional study of 44-55-66-PM and control in Ankle Trauma and Education, sponsored by St. Justine's Hospital. Completed at 1 site in Canada. Per ClinicalTrials.gov, last updated 2013-03-19.

Sponsored by St. Justine's Hospital · Not applicable and Interventional

Phase
Not applicable
Study type
Interventional
Enrollment
191
Allocation
Randomized
Sex
All
01

Study summary

The purpose of this study is to evaluate wether the use of a mnemonic strategy could improve the recall of the Ottawa Ankle and foot Rules' guidelines among medical students and residents

02

Conditions studied

  • Ankle Trauma
  • Education

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Keywords

  • Clinical decision rule
  • Ottawa Ankle Rule
  • Ottawa Foot Rule
  • Ankle
  • Trauma
  • Education
  • Foot Trauma
03

In context

Wounds and Injuries

5,056 studies on the registry are indexed under Wounds and Injuries; 861 are open to participants now.

This study's enrollment of 191 is above the median of 52 across 3,239 interventional studies indexed under Wounds and Injuries.

Browse Wounds and Injuries studies →

Lead sponsor

St. Justine's Hospital is the lead sponsor of 155 studies on the registry; 27 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Being a medical student in rotation in pediatrics at CHU Sainte-Justine
  • Being a resident in pediatric emergency rotation at CHU Sainte-Justine

Exclusion criteria

Exclusion Criteria:

  • None
05

Study design

Phase
Not applicable
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Investigator, Outcomes assessor)
Enrollment
191 participants (actual)

Study arms

  • Experimental
    Intervention

    Participants will be given a standardized information sheet providing a mnemonics to help remember the Ottawa Ankle and foot Rules.

    Other: 44-55-66-PM

  • Placebo comparator
    0

    control group

    Other: control

Interventions

  • Other44-55-66-PM

    The mnemonic 44-55-66-PM helps to remember the components of the Ottawa Ankle and foot Rule. 44: Is to remember that an X-ray is required if the patients is unable to walk 4 steps at the moment of the Accident AND during the physical examination 55: Is to remember that an X-ray of the foot is required if the patient has pain at the basis of the 5Th metatarsal of at the 5caphoid 66-PM: Is to remember that an X-ray of the ankle is required if the patient has pain in the Posterior of the lateral or medial malleolar

  • Othercontrol

    Participants will be instructed of the components of the Ottawa Ankle Rule on a standardized sheet

06

What researchers measure

Primary outcomes

  1. Knowledge of the components of the Ottawa Ankle rule based on a 13 points evaluation

    Time frame: 3-4 weeks after intervention

  2. Knowledge of the components of the Ottawa foot rule based on a 10 points evaluation

    Time frame: 3-4 weeks

Secondary outcomes

  1. Proportion of perfect knowledge of the Ottawa Ankle and Foot Rules

    Time frame: 3-4 weeks

  2. Score on an exam evaluating management of 20 case scenarios describing patients with an ankle or foot trauma

    Time frame: 3-4 weeks post intervention

  3. Knowledge of the 13 components of the Ottawa Ankle Rule and the 10 components of the Ottawa Foot Rule

    Time frame: 6 months post intervention

07

Study locations

1 site
  • CHU Sainte-Justine
    Montreal, Quebec h3t1c5, Canada
08

References and documents

Publications

  • Gravel J, Roy M, Carriere B. 44-55-66-PM, a mnemonic that improves retention of the Ottawa Ankle and Foot Rules: a randomized controlled trial. Acad Emerg Med. 2010 Aug;17(8):859-64. doi: 10.1111/j.1553-2712.2010.00731.x. PubMed 20670323 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 19, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00652353
Lead sponsor
St. Justine's Hospital
Responsible party
Jocelyn Gravel (MD, St. Justine's Hospital) — Principal investigator
First posted
Apr 3, 2008
Start date
May 2008
Primary completion
Jun 2009
Completion
Jun 2009
Last update
Mar 19, 2013

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2013. You cannot join it, but the record below documents what was studied.

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