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Cozen's test
System: Muscles, Bones & Joints Signs · All muscles, bones & joints signs
What it is — and how it is elicited
The patient makes a fist and extends the wrist against resistance with the elbow straight; pain over the outer elbow (lateral epicondyle) is positive.
What a positive finding suggests
Associated with lateral epicondylitis — 'tennis elbow'.
◈ Behind the name
Lewis Cozen (1910–1990), American orthopaedic surgeon.
Related signs — Muscles, Bones & Joints Signs
Browse the C section of the A–Z list or return to the Clinical Signs hub.
Please note: This page is an educational reference about clinical examination signs. A clinical sign supports — and never replaces — a full clinical evaluation, examination and appropriate testing. A sign being present does not by itself prove a diagnosis, and an absent sign does not rule one out. If you have symptoms that worry you, see a health professional.