Rotator Cuff Tendonitis
Rotator cuff tendonitis and tears are common disorders of some of the muscles that control movement of the arm and shoulder. Rotator cuff tendonitis and tears are collectively known as Impingement Syndrome.
The rotator cuff is a series of four muscles that function to stabilize your shoulder and allow your arm to move through a full range of motion. The muscle tendons are lubricated by a fluid filled sac called the subacromial bursa. Impingement occurs when inflammation or bony spurs narrow the space available for the rotator cuff tendons. The syndrome is divided into 3 stages:
Stage I: Swelling and Mild Pain
Stage II: Inflammation and Scarring
Stage III: Partial or Complete tears of the rotator cuff
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Rotator Cuff Homepage