Mill’s Test

 Mill’s Test

What is Mill’s Test?

Mill’s Test is used for diagnosis of Lateral Epicondylitis in the elbow, also known as “Tennis Elbow”.

It was first described and published by Percival Mills, F.R.C.S (Jan 7th 1928), and updated on July 31. 1937 1 2

How do you perform a Mill’s test?

What does a positive Mill’s Test mean?

Sensitivity & Specificity

According to G Saroja Mill’s Test has good diagnostic accuracy. His study concludes that it has an excellent diagnostic value for ruling in Lateral Epicondylitis of the elbow (Tennis Elbow). 3



Tennis elbow (lateral epicondylitis)

Related Anatomy

The common extensor tendon of the forearm consists of:

  1. The extensor carpi radialis brevis (ECRB).
  2. The extensor carpi radialis longus (ECRL).
  3. Extensor digitorum.
  4. Extensor digiti minimi.
  5. Extensor carpi ulnaris.

The common extensor tendon originates from the lateral epicondyle of the elbow.

The extensor carpi radialis brevis (ECRB)Lateral epicondyle of humerus (Common extensor tendon)Third metacarpal baseExtending wristRadial nerve
The extensor carpi radialis longus (ECRL)Lateral epicondyle of humerus (Common extensor tendon)Second metacarpal baseExtending wristRadial nerve
Extensor digitorumLateral epicondyle of humerus (Common extensor tendon)Extensor aponeurosisExtending digitsRadial- posterior interosseous nerve
Extensor digiti minimiLateral epicondyle of humerus (Common extensor tendon)Small finger extensor expansion over P1Extending small fingerRadial- posterior interosseous nerve
Extensor carpi ulnarisLateral epicondyle of humerus (Common extensor tendon)Fifth metacarpal baseExtending/adducting handRadial- posterior interosseous nerve
The common extensor tendon
common extensor tendon
Common Extensor Tendon Anatomy


  1. G. Percival Mills Treatment of tennis elbow. The British medical journal 12. Jan 7. 1928
  2. Mills GP. Treatment of tennis elbow. British medical journal. 1937 Jul 31;2(3995):212.
  3. G Saroja , Antony Leo Aseer P , Venkata Sai P M. Diagnostic Accuracy Of Provocative Tests In Lateral Epicondylitis. International Journal of Physiotherapy and Research 2(6):815-823. December 2014. ResearchGate
  4. Clinical Tests for the Musculoskeletal System, Third Edition.
  5. Millers Review of Orthopaedics, 7th Edition.

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