Rotator cuff interval

Last revised by Dr Grace Carpenter on 06 Dec 2020

The rotator cuff interval is a triangular space between the tendons of subscapularis and supraspinatus and the base of the coracoid process.

The combination of the coracohumeral ligament and superior glenohumeral ligament has a complex relationship with the long head of biceps tendon (LHB), acting together to prevent subluxation or anterior dislocation of the LHB.

  • anterior: posterior aspect of the subscapularis tendon
  • posterior: anterior border of the supraspinatus tendon
  • medial: lateral margin of the base of the coracoid process
  • roof: the rotator interval capsule, reinforced by:
    • coracohumeral ligament
  • tendon of the long head of biceps brachii
  • superior glenohumeral ligament

It was first defined by C S Neer in 1970 3

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Cases and figures

  • Figure 1
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