What is Impingement Syndrome of the Shoulder?
Impingement syndrome is a common shoulder condition seen in aging adults. This condition is closely related to shoulder bursitis and rotator cuff tendonitis. These conditions may occur alone or in combination. In most parts of the body, the bones are surrounded by muscles. In the shoulder region, however, the muscle is surrounded by bone. If one taps on the top of the shoulder, bone can be felt immediately under the skin. Underneath that bone is the muscle that lifts the arm. The rotator cuff muscles of the shoulder are sandwiched between the arm bone and the top of the shoulder (acromion).