Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.
John P. Cunha, DO, is a U.S. board-certified Emergency Medicine Physician. Dr. Cunha's educational background includes a BS in Biology from Rutgers, the State University of New Jersey, and a DO from the Kansas City University of Medicine and Biosciences in Kansas City, MO. He completed residency training in Emergency Medicine at Newark Beth Israel Medical Center in Newark, New Jersey.
Rotator cuff disease is one of the most common causes of shoulder pain.
The rotator cuff can be injured by degeneration, inflammation, or trauma.
The diagnosis of rotator cuff disease can be confirmed by radiology testing.
The treatment of rotator cuff disease depends on the severity of the injury to the tendons of the rotator cuff.
What is the rotator cuff?
The rotator cuff is the group of four tendons that stabilize the shoulder joint. The tendons hook up to the four muscles that move the shoulder in various directions.
There are four muscles whose tendons form the rotator cuff: the subscapularis muscle, which moves the arm by turning it inward (internal rotation); the supraspinatus muscle, which is responsible for elevating the arm and moving it away from the body; the infraspinatus muscle, which assists the lifting of the arm during turning the arm outward (external rotation); and the teres minor muscle, which also helps in the outward turning of the arm.
Rotator cuff disease is damage to the rotator cuff from any cause. It can be from an acute injury or from repetitive strains. This can lead to minor strain injury, partial tear of the tendons, or complete tear of tendons with loss of shoulder joint function. Rotator cuff injury is one of the most common causes of shoulder pain.
What are risk factors for rotator cuff disease?
Risk factors for rotator cuff disease include any activity that involves sudden strain movements of the shoulder against resistance. These include lifting weights, lifting overhead, tennis, swimming, sports where objects are thrown (baseball or softball pitchers, football quarterbacks, etc.), and taking luggage off of racks, etc.
The rotator cuff can be injured because of degeneration with aging or inflammation due to tendinitis, bursitis, or arthritis of the shoulder. The rotator cuff is commonly injured by trauma (such as from falling and injuring the shoulder or overuse in sports). Rotator cuff injury is particularly common in people who perform repetitive overhead motions that can stress the rotator cuff. These motions are frequently associated with muscle fatigue.
The design of the shoulder joint is such that it sacrifices stability for mobility. As an extremely mobile joint that plays a central role in the action of a major extremity, the shoulder is at risk for injury. Common injuries of the shoulder can lead to inflammation of the bursae (bursitis) or tendons (tendonitis) and result in rotator cuff dysfunction as well as instability and frozen shoulder.