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The rotator cuff is a group of four tendons that covers the humeral head and controls arm rotation and elevation. These muscles and their tendons work together with the deltoid muscle to provide motion and strength to the shoulder for all waist-level and shoulder-level or above activities.
Rotator cuff tendonitis is an inflammation of a group of muscles in the shoulder together with an inflammation of the lubrication mechanism called the BURSA. In fact, ‘bursitis’ should not be considered a diagnosis but rather a symptom of rotator cuff tendonitis.
This condition is often caused by or associated with repetitive overhead activities such as throwing, raking, washing cars or windows and many other types of highly repetitive motions. It may also occur as a result of an injury. Rotator cuff injuries are the most common cause of shoulder pain and limitation of activities in sports in all age groups. Rotator cuff tendonitis is the mildest form of rotator cuff injury.
The shoulder has a unique arrangement of muscle and bone. The rotator cuff (which is muscle) is sandwiched between two bones much like a sock lies between the heel and the edge of a shoe. In the same way that repeated walking eventually wears out the sock, the rotator cuff muscles fray with repeated rubbing on the bone. As the muscle begins to fray, it responds to the injury by becoming inflamed and painful. With continued fraying, like a rope, it may eventually tear.
What are the symptoms of Rotator Cuff Injury?
The classic symptoms include a ‘toothache’ like pain radiating from the outer arm to several inches below the top of the shoulder. Pain may also occur in the front and top of the shoulder. It may interfere with sleeping comfortably. It may even awaken people from a sound sleep with a nagging pain in the upper arm.
The symptoms are usually aggravated by raising the arms overhead or in activities that require reaching behind the body, such as retrieving an object from the back seat of a car. Furthermore, reaching behind the back to fasten underclothing or to pass a belt may aggravate the arm and shoulder pain.
A clicking in the shoulder may occur when raising the arm above the head.
What are my treatment options for Rotator Cuff Injury?
A thorough history and physical exam will nearly always lead to a correct diagnosis. X-rays will often show changes on the arm bone where the rotator cuff muscles attach, but an MRI provides the definitive diagnosis. This test clearly shows the muscles and indicates if the muscle is inflamed, injured or torn.
The following steps should be taken as a conservative approach to treating rotator cuff tendonitis:
- Stop or markedly decrease the activity that required the use of the shoulder at or above shoulder level.
- Apply ice to the affected area.
- Take anti-inflammatory medication to reduce arm and shoulder pain.
- Begin an exercise program to maintain flexibility.
- Avoid carrying heavy objects with the affected arm or using shoulder-strap bags on the affected side.
Daily stretching while in a hot shower is also beneficial. If shoulder pain becomes more severe, prescription strength medication or a cortisone type injection may help.
Cortisone injections can be very effective in the treatment of the pain. The specialist will recommend the injection together with the rotator cuff injury physiotherapy.
For a young patient under the age of 30 and with a first time episode of rotator cuff tendonitis that is treated immediately with the above protocol. The average length of time for rehabilitation is two to four weeks. For those with recurrent episodes of tendonitis and some risk factors, rotator cuff tendonitis may take months to heal and in rare cares may require surgery.
Surgical Treatment for Rotator cuff injury
If symptoms persist, surgery to remove a spur on the acromion can increase the space available for the inflamed tendon and may prevent further fraying or complete rupture. If an MRI shows a complete muscle injury, surgical repair may be required.
Surgery for recurrent rotator cuff tendonitis (bursitis) is occasionally performed to:
- Remove a prominence or spur on the undersurface of the acromion.
- Remove chronically inflamed, thickened and fibrotic bursal tissue.
- Inspect the tendons and tidy up and sometimes repair a tear in the tendons.
These procedures are often done in combination. This can be done either through an open or an arthroscopic approach with the start of an early rehabilitation program one or two days after surgery. Then advancing to a more comprehensive program between two and five weeks after surgery. The initiation and progression of these exercises is dependent upon the patient’s findings at surgery, surgical procedure and rate of healing.
What do I need to do the day of surgery?
- If you currently take any medications, take them the day of your surgery with just a sip of water.
- Do not wear any jewelry, body piercing, makeup, nail polish, hairpins or contacts.
- Leave valuables and money at home.
- Wear loose-fitting, comfortable clothing.
How long is the recovery period after surgery?
The time for complete recovery is variable and can range from two to four weeks for a first-time mild episode treated properly to several weeks or months for chronic or recurrent cases or in people with more extensive surgery.
In most case, a sport specific program can begin four to six weeks after surgery, with a return to competition six to twelve weeks after surgery. This will need to be customized to your situation. Your doctor will tell you what is appropriate for your condition.
What is the rehab after surgery?
Although there is no one set protocol for rehabilitation for rotator cuff tendonitis several principles should be followed:
- Regain all passive range of motion first.
- Begin strengthening the rotator cuff with the arm by the side.
- Add deltoid and shoulder level strengthening when the shoulder is less painful.
- Be sure to strengthen the muscles that control the shoulder blade to regain normal smooth shoulder blade motion and strength when the arm is fully elevated overhead. The level of strengthening is dependent upon the individual needs of the person. It also depends on physical demands that he or she intends to place on the shoulder as well as the progress made in the initial program.
Before returning to sports, a sport-specific component to the rehabilitation program should be started that includes an initial return to a non-competitive level of sport participation. In the sport-specific rehabilitation, the athlete performs the activity for 25-50 percent effort (duration, frequency and intensity). If the athlete performs well at this level without pain over a few days then the activity can be increased over the next few days in intensity, frequency and duration.
Dr Kevin M. H. Yip
Senior Orthopaedic Consultant & Surgeon
Special Interest in Knee & Shoulder
Tel: (65) 66532628