Hook Test

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 Hook Test

What is Hook Test?

Hook Test is used to check for Distal Biceps tendon Avulsion at the elbow joint. It was developed by Shawn W O’Driscoll in 20071.

See Also: Biceps Squeeze Test

How it’s Performed?

Hook Test

What does a positive Hook Test mean?

Some conditions give a false positive results:

  1. Partial tear.
  2. Intact lacertus fibrosis.
  3. Underlying brachialis tendon.

Sensitivity & Specificity

Shawn W O’Driscoll1 found that the hook test is a highly sensitive and specific test for assessment of distal biceps tendon avulsions:


The examiner must be sure to hook the lateral edge of the biceps tendon, not the medial edge, because the lacertus fibrosus might be mistaken for an intact biceps tendon.


  1. Shawn W O’Driscoll, Lucas B J Goncalves, Patricio Dietz: The hook test for distal biceps tendon avulsion. Am J Sports Med. 2007 Nov;35(11):1865-9. doi: 10.1177/0363546507305016. Epub 2007 Aug 8. PMID: 17687121.
  2. Campbel’s Operative Orthopaedics 13th edition book.

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