Understanding the Cozen's Test Assessment
To detect **Lateral Epicondylitis** (Tennis Elbow), which is tendinopathy of the **Extensor Carpi Radialis Brevis (ECRB)** origin.
Watch How It's Done
How do I start?
Patient is sitting or standing. Elbow is slightly flexed. Forearm is pronated.
What happens?
The patient actively **extends the wrist** and is asked to maintain this position against the strong, opposing resistance applied by the examiner.
Clinical Accuracy
84%
N/A
Source: Saroja et al. (2014)
In Plain English
What Does a Positive Result Mean?
Sharp **pain is reproduced precisely over the lateral epicondyle** of the elbow.
Helpful Tip:
The resisted extension stresses the common extensor tendon origin, causing pain if inflamed.
Safety First
This guide is to help you understand what happens in a clinic. Do not try to diagnose yourself. If you have severe pain, swelling, or cannot put weight on your leg, please visit an urgent care center or your doctor immediately.
Other Elbow Tests
Elbow Quadrant Tests
A generalized term for assessing the **end-feel and range of motion** of the elbow joint in flexion and extension, often used to assess stiffness or loose bodies.
Mill's Test
To detect **Lateral Epicondylitis** (Tennis Elbow) by passively stressing the common extensor tendon origin.
Tinel's Test (at the Elbow)
To assess for irritation, regeneration, or entrapment of the **Ulnar Nerve** at the elbow (**Cubital Tunnel Syndrome**).
Valgus Stress Test (Elbow)
To assess the integrity of the **Ulnar Collateral Ligament (UCL)** (Medial Collateral Ligament), which resists valgus forces.