What Is A Rotator Cuff Tear?
The rotator cuff muscles are a group of four muscles that surround the shoulder. They are the:
supraspinatus, infraspinatus, teres minor and subscapularis.
The four rotator cuff muscle tendons combine to form a broad, conjoined tendon, called the rotator cuff tendon, and insert onto the bone of the humeral head in the shoulder.
The humeral head is the ball side of the “ball and socket” shoulder joint; the socket is called the glenoid fossa.
Rotator Cuff Tear - What Is it?
Many rotator cuff tears cause no pain nor produce any symptoms, tears are known to have an increasing incidence with increasing age.
[1] The most frequent cause of rotator cuff damage is age related degeneration and less frequently by sports injuries or trauma.
[2] Partial and full thickness tears have been found on post mortem studies and on MRI studies, in people who do not have a history of shoulder pain or symptoms
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