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Osteoarthritis of the Knee: Sensitivity and Specificity

Introduction: None written.

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Tags: Musculoskeletal Tag this Diagnosis.

Prevalence

Population / CalculatorPrevalence Comments / Study / Link
Visits to Primary Care for Knee Pain 34% Ann Intern Med. 2003 Oct 7;139(7):575-88. PMID: 14530229
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The sensitivity and specificity of findings for Osteoarthritis of the Knee are listed below. See the left navigation bar to change the display.

Pre-Test Probability (Prevalence): %. Post-Test Probability (Predictive Value): %. Switch to display mode.
**Note that calculating probabilities from more than one finding is inherently inaccurate because findings are not independent. (For example, using two positive findings that share a common pathogenesis is likely to overestimate the true probability.)
Specific Findings
FindingResult SensitivitySpecificity
[ + ] ACR Criteria + 0 - 84%89%
Sensitive Findings
FindingResult SensitivitySpecificity
[ + ] ACR Criteria + 0 - 95%69%
[ + ] ACR Criteria + 0 - 92%75%
Poorly Diagnostic Findings
FindingResult SensitivitySpecificity
[ + ] Osteophytes + 0 - 77%83%