rotator cuff interval

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

Gross anatomy

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.

Boundaries
  • 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
Contents
  • tendon of the long head of biceps brachii
  • superior glenohumeral ligament

History and etymology

It was first defined by C S Neer in 1970

Related pathology