Have you ever experienced a dull ache or sharp pain in your shoulder or upper arm? Maybe you are unable to sleep on one side because your shoulder wakes you up at night. Perhaps, you have discomfort reaching behind your back to tuck in your shirt or grab your wallet. If so, you may be suffering from a rotator cuff injury.

Rotator cuff injuries, such as tendonitis, bursitis and tears plague several people in our population. The rotator cuff consists of four small muscles, which form a sleeve around the shoulder and allow us to raise our arm overhead effectively. These muscles, consisting of the supraspinatus, infraspinatus, teres minor and subscapularis, oppose the action of the deltoid and depress the head of the humerus (upper arm) during shoulder elevation to prevent impingement.