The "rotator cuff" is a group of 4 muscles and their tendons (tissues that attach muscles to bones), which connects the upper arm bone, or humerus, to the shoulder blade. The important job of the rotator cuff is to keep the shoulder joint stable. Sometimes, the rotator cuff becomes inflamed or irritated due to heavy lifting, repetitive arm movements, or trauma such as a fall. A rotator cuff tear occurs when injuries to the muscles or tendons cause tissue damage or disruption.

Rotator cuff tears are called either "full thickness" or "partial thickness," depending on how severe they are.

• Full-thickness tears extend from the top to the bottom of a rotator cuff muscle/tendon.
• Partial-thickness tears affect at least some portion of a rotator cuff muscle/tendon, but do not extend all the way through.

Tears often develop as a result of either a traumatic event or long-term overuse of the shoulder. These conditions are commonly called "acute" or "chronic."

• Acute rotator cuff tears are those that occur suddenly, often due to traumas, such as a fall or lifting of a heavy object.
• Chronic rotator cuff tears are much slower to develop. These tears are often the result of repeated actions with the arms working above shoulder level, such as with ball-throwing sports or certain work activities.

People with chronic rotator cuff injuries often have a history of rotator cuff tendon irritation that causes shoulder pain with movement. This condition is known as shoulder impingement syndrome.

Rotator cuff tears also may occur in combination with injuries or irritation of the biceps tendon at the shoulder, or with labral tears (to the ring of cartilage at the shoulder joint). Your physical therapist will explain the particular details of your rotator cuff tear.

People with rotator cuff tears can experience:

• Pain over the top of the shoulder or down the outside of the arm.
• Shoulder weakness.
• Loss of shoulder motion.
• A feeling of weakness or heaviness in the arm.
• Inability to lift the arm to reach up, or reach behind the back.
• Inability to perform common daily activities due to pain and limited motion.

To help pinpoint the cause of your shoulder pain, your physical therapist will complete a thorough examination that will include learning details of your symptoms, assessing your ability to move your arm, identifying weakness, and performing special tests that may indicate a rotator cuff tear. For instance, your physical therapist may raise your arm, move your arm out to the side, or raise your arm and ask you to resist a force, all at specific angles of elevation.

In some cases, the results of these tests might indicate the need for a referral to an orthopedist or other professional for imaging tests, such as ultrasound imaging, MRI, or a CT scan.

Once a rotator cuff tear has been diagnosed, you will work with your orthopedist and physical therapist to decide if you should have surgery or if you can try to manage your recovery without surgery.

If you don't need surgery, your physical therapist will work with you to restore your range of motion, muscle strength, and coordination, so that you can return to your regular activities. In some cases, you may learn to modify your physical activity so that you put less stress on your shoulder.

If you decide to have surgery, your physical therapist can help you both before and after the procedure.

Regardless of which treatment you have—physical therapy only, or surgery and physical therapy—early treatment can help you speed the healing process and avoid permanent damage.

If You Have an Acute Injury

If a rotator cuff tear is suspected following a trauma, seek the attention of a physical therapist or other health care provider to rule out the possibility of serious life- or limb-threatening conditions. Once serious injury is ruled out, your physical therapist will help you manage your pain and will prepare you for the best course of treatment.

If You Have a Chronic Injury

A physical therapist can help manage the symptoms of chronic rotator cuff tears as well as improve how your shoulder works. For large rotator cuff tears that can't be fully repaired, physical therapists can teach special strategies to improve shoulder movement. However, if physical therapy and conservative treatment alone do not improve your function, surgical options may exist.

A physical therapist can help you reduce the worsening of the symptoms of a rotator cuff tear and may decrease your risk of worsening a tear, especially if you seek assistance at the first sign of shoulder pain or discomfort. To avoid developing a rotator cuff tear from an existing shoulder problem, it is imperative to stop performing actions that could make it worse. Your physical therapist can help you strengthen your rotator cuff muscles, train you to avoid potentially harmful positions, and determine when it is appropriate for you to return to your normal activities.

To maintain shoulder health and prevent rotator cuff tears, physical therapists recommend that you:

• Avoid repeated overhead arm positions that may cause shoulder pain. If your job requires such movements, seek out the advice of a physical therapist to learn arm positions that may be used with less risk.
• Apply rotator-cuff muscle and shoulder-blade strengthening exercises into your normal exercise routine. The strength of the rotator cuff is just as important as the strength of any other muscle group. To avoid potential harm to the rotator cuff, general strengthening and fitness programs may improve shoulder health.
• Practice good posture. A forward position of the head and shoulders has been shown to alter shoulder-blade position and create shoulder impingement syndrome.
• Avoid sleeping on your side with your arm stretched overhead, or lying on your shoulder. These positions can begin the process that causes rotator cuff damage and may be associated with increasing your pain level.
• Avoid smoking; it can decrease the blood flow to your rotator cuff.
• Consult a physical therapist at the first sign of symptoms.

All physical therapists are prepared through education and experience to treat patients who have a rotator cuff tear, but you may want to consider:

• A physical therapist who is experienced in treating people with musculoskeletal problems. Some physical therapists have a practice with an orthopedic focus.
• A physical therapist who is a board-certified clinical specialist or who completed a residency or fellowship in orthopedic physical therapy has advanced knowledge, experience, and skills that may apply to your condition.

You can find physical therapists who have these and other credentials by using Find a PT, the online tool built by the American Physical Therapy Association to help you search for physical therapists with specific clinical expertise in your geographic area.

General tips when you're looking for a physical therapist (or any other health care provider):

• Get recommendations from family and friends or from other health care providers.
• When you contact a physical therapy clinic for an appointment, ask about the physical therapists' experience in helping people with labral tears.
• Be prepared to describe your symptoms in as much detail as possible, and say what makes your symptoms worse.