Subcoracoid impingement

Last revised by Dr Yuranga Weerakkody on 10 Sep 2021

Subcoracoid impingement is an unusual form of shoulder impingement, and results from narrowing of the coracohumeral interval (space between the tip of the coracoid and the humerus). Narrowing is typically seen in the setting of prior rotator cuff repair, but occasionally also results from congenital narrowing or trauma. 

The structures affected are 2:

  1. subscapularis tendon
  2. long head of the biceps tendon
  3. middle glenohumeral ligament

Clinically, patients present with pain in the anterior aspect of the shoulder when the arm is held at the side (adducted, internally rotated and in forward flexion - also known as military parade rest position) 2.

Radiographic features


May show pooling fluid in subcoracoid bursa.

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Cases and figures

  • Case 1 : with subscapularis tendinosis and tear
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  •  Case 2
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  • Case 3 : with severe subscapularis tendinosis
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  • Case 4
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  • Case 5
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  • Case 6
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