Mill’s Test

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 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

See Also: Cozen's Test

How do you perform a Mill’s test?

What does a positive Mill’s Test mean?

Mill’s Test Accuracy

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

Thomson Test (Tennis Elbow Sign)

Thomson Test (Tennis Elbow Sign) is another similar test to mills test that is used for Tennis Elbow diagnosis.

The patient is requested to make a fist and extend the elbow with the hand in slight dorsiflexion. The examiner immobilizes the dorsal wrist with one hand and grasps the fist with the other hand. The patient is then requested to further extend the fist against the examiner’s resistance; or the examiner attempts to press the dorsiflexed fist into flexion against the patient’s resistance.

Severe pain over the lateral epicondyle and in the lateral extensor compartment strongly suggests Lateral Epicondylitis.

Thomson Test (Tennis Elbow Sign)
Thomson Test (Tennis Elbow Sign)

Motion Stress Test

It’s another similar and less common uses test for Lateral Epicondylitis diagnosis.

The patient is seated. The examiner palpates the lateral epicondyle while the patient flexes the wrist and elbow, pronates the forearm , and then extends the elbow again in a continuous motion.

Pronation and wrist flexion place great stresses on the tendons of the forearm muscles that arise from the lateral epicondyle.

Occurrence of pain in the lateral epicondyle and/or lateral extensor musculature with these motions suggests epicondylitis.

However, pain and paresthesia can also occur as a result of compression of the median nerve, because in this maneuver the action of the pronators can compress the nerve.

Motion Stress Test
Motion Stress Test

Notes

LATERAL EPICONDYLOSIS (TENNIS ELBOW):

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.

MuscleOriginInsertionActionInnervation
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

Reference

  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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