Anatomy · Upper Limb

Rotator cuff: formation, functions and clinical lesions

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  • Rotator cuff (musculotendinous cuff): tendons of supraspinatus, infraspinatus, teres minor and subscapularis (SITS muscles) fused with the underlying capsule of the glenohumeral joint.

Formation

  • Formed by the tendons of the four scapulohumeral (SITS) muscles fusing with the glenohumeral joint capsule.

Site of fusion of SITS tendons with the joint capsule

Muscle

Supraspinatus

Site of fusion
Superior

Infraspinatus

Site of fusion
Posterior

Teres minor

Site of fusion
Posterior

Subscapularis

Site of fusion
Anterior

musculotendinous (rotator) cuff Musculotendinous (rotator) cuff.