Test library › Elbow & forearm
Cozen's test
For: Lateral elbow tendinopathy
Painful overload of the wrist extensor tendons where they attach to the outside of the elbow. Also called tennis elbow.
Not enough published figures to judgeSpecificity 0% (0 of 4): all 4 people without the condition tested positive. That is too few to interpret, so the paper's likelihood ratios are not shown.
What the numbers mean
- Too few published figures to say how much a result changes the picture.
Source
Saroja G, Aseer PA, Venkata Sai P M. Diagnostic Accuracy of Provocative Tests in Lateral Epicondylitis. Int J Physiother Res. 2014;2(6):815–823. Journal article (PDF) · single study
Figures as they will appear in Rule It In, Rule It Out (Trokos, forthcoming). If a newer or better study changes them, this page changes with the book. Figures last updated from the book on 2 October 2026.
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This page gives the published figures. Rule It In, Rule It Out adds how to do this test, what counts as positive, how to read the result, and, where studied, whether combining it with other tests helps.
Coming in late 2026 as a PDF and a paperback. Join the list to hear when it's out
One study, one test, once a month
Rule It In is a free evidence letter for musculoskeletal clinicians: one recent study explained, one examination test with its real numbers. From Trokos, publisher of Rule It In, Rule It Out.