Ottawa knee rules: Difference between revisions
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== | ==Background== | ||
[[File:Knee diagram2.png|thumb|Anatomy of anterolateral aspect of right knee.]] | |||
*98.5% sensitive and 48.6% specific in determining knee fracture<ref>Bachmann LM, Haberzeth S, Steurer J, et al. The accuracy of the Ottawa knee rule to rule out knee fractures: a systematic review. Ann Intern Med. 2004; 140(2):121-4.</ref> | |||
*Can be applied to pediatric population<ref>Bulloch B, Neto G, Plint A, et al. Validation of the Ottawa Knee Rule in children: a multicenter study. Ann Emerg Med. 2003; 42(1):48-55.</ref> | |||
*Rule has been retrospectively and retrospectively validated<ref>Stiell IG, Greenberg GH, Wells GA, et al. Derivation of a decision rule for the use of radiography in acute knee injuries. Ann Emerg Med. 1995; 26(4):405-13.</ref><ref>Stiell IG, Greenberg GH, Wells GA, et al. Prospective validation of a decision rule for the use of radiography in acute knee injuries. JAMA. 1996; 275(8):611-615.</ref><ref>Stiell IG, Wells GA, Hoag RH, et al. Implementation of the Ottawa Knee Rule for the use of radiography in acute knee injuries. JAMA. 1997; 278(23):2075-2079.</ref> | |||
===Caveats | ==Criteria== | ||
{{Ottawa knee rules}} | |||
==Caveats== | |||
*99% sensitive in children OVER age 5<ref>Vijayasankar D, Boyle AA, Atkinson P. Can the Ottawa knee rule be applied to children? A systematic review and meta-analysis of observational studies. Emerg Med J. 2009; 26(4):250-3.</ref> | |||
*Beware of the Tillaux Fracture in adolescents with anteromedial ankle pain, as they would not qualify for imaging according to this rule. | |||
==External Links== | ==External Links== | ||
[http://www.mdcalc.com/ottawa-knee-rules/ MDCalc - Ottawa Knee Rules] | *[http://www.mdcalc.com/ottawa-knee-rules/ MDCalc - Ottawa Knee Rules] | ||
==See Also== | ==See Also== | ||
*[[ | *[[Acute knee injury]] | ||
*[[Ottawa Ankle Rules]] | *[[Ottawa Ankle Rules]] | ||
== | ==References== | ||
<references/> | |||
[[Category: | [[Category:Orthopedics]] | ||
Latest revision as of 21:48, 5 March 2025
Background
- 98.5% sensitive and 48.6% specific in determining knee fracture[1]
- Can be applied to pediatric population[2]
- Rule has been retrospectively and retrospectively validated[3][4][5]
Criteria
Ottawa knee rules
X-ray is only required in patients who have an acute injury and one or more of the following:
- Age >55
- Isolated tenderness of the patella
- Tenderness at the fibular head
- Inability flex to 90 degrees
- Inability to walk 4 steps BOTH immediately after the injury and in the ED
Caveats
- 99% sensitive in children OVER age 5[6]
- Beware of the Tillaux Fracture in adolescents with anteromedial ankle pain, as they would not qualify for imaging according to this rule.
External Links
See Also
References
- ↑ Bachmann LM, Haberzeth S, Steurer J, et al. The accuracy of the Ottawa knee rule to rule out knee fractures: a systematic review. Ann Intern Med. 2004; 140(2):121-4.
- ↑ Bulloch B, Neto G, Plint A, et al. Validation of the Ottawa Knee Rule in children: a multicenter study. Ann Emerg Med. 2003; 42(1):48-55.
- ↑ Stiell IG, Greenberg GH, Wells GA, et al. Derivation of a decision rule for the use of radiography in acute knee injuries. Ann Emerg Med. 1995; 26(4):405-13.
- ↑ Stiell IG, Greenberg GH, Wells GA, et al. Prospective validation of a decision rule for the use of radiography in acute knee injuries. JAMA. 1996; 275(8):611-615.
- ↑ Stiell IG, Wells GA, Hoag RH, et al. Implementation of the Ottawa Knee Rule for the use of radiography in acute knee injuries. JAMA. 1997; 278(23):2075-2079.
- ↑ Vijayasankar D, Boyle AA, Atkinson P. Can the Ottawa knee rule be applied to children? A systematic review and meta-analysis of observational studies. Emerg Med J. 2009; 26(4):250-3.