Shoulder - Calcified Tendonitis
Description
Calcific tendonitis occurs in the tendons (tendons attach muscles to bones) of the rotator cuff. The rotator cuff is actually made up of several tendons that connect the muscles around your shoulder to the humerus (the larger bone of the upper arm). Calcium deposits usually form on the tendon in the rotator cuff called the supraspinatus tendon.
What are the causes?
There are two different types of calcific tendonitis of the shoulder: degenerative calcification and reactive calcification. The wear and tear of aging is the primary cause of degenerative calcification. As we age, blood flow to the tendons of the rotator cuff decreases. This makes the tendon weaker. Due to the wear and tear as we use our shoulder, the fibers of the tendons begin to fray and tear, just like a worn-out rope. Calcium deposits form in the damaged tendons as a part of the healing process.
Reactive calcification is different. Why it occurs is not clear. It doesn’t seem to be related to degeneration, though it is more likely to cause shoulder pain than degenerative calcification. Doctors think of reactive calcification in three stages. In the pre-calcific stage, the tendon changes in ways that make calcium deposits more likely to form. In the calcific stage, calcium crystals are deposited in the tendons. Then they begin to disappear. The body simply reabsorbs the calcium deposits. Ironically, it is during this stage that pain is most likely to occur. In the post-calcific stage, the body heals the tendon, and the tendon is remodeled with new tissue.
No one knows what triggers the body to reabsorb the deposits. But once this occurs and the tissue begins to be remodeled, the pain usually decreases or goes away altogether.
What are the symptoms?
While the calcium is being deposited, you may feel only mild to moderate pain, or even no pain at all. For some unknown reason, calcific tendonitis becomes very painful when the deposits are being reabsorbed. The pain and stiffness of calcific tendonitis can cause you to lose motion in your shoulder. Lifting your arm may become painful. At its most severe, the pain may interfere with your sleep.
How is it diagnosed?
Your doctor will take a detailed medical history and do a thorough physical exam of your shoulder. The pain of calcific tendonitis can be confused with other conditions that cause shoulder pain. An X-ray is usually necessary to confirm the presence of calcium deposits. The X-ray will also help pinpoint the exact location of the deposits.
You will probably need to get several X-rays over time. This will help your doctor keep track of the changes in the amount of calcification. By following the changes in the calcium deposits, your doctor can determine whether the condition will heal by itself or perhaps require surgery.
Non-operative
Non-operative treatment of calcified tendonitis is usually the first line of treatment. Dr. Liu may recommend rest, anti-inflammatory medicine and or cryotherapy to help reduce the pain and inflammation. An injection into the space above the rotator cuff may help resolve the pain. Cortisone can be very effective at temporarily easing inflammation and swelling.
Platelet Rich Plasma (PRP) Injections is another non operative option. Blood is taken from your arm and is spun down to get the healthiest healing factors - platelets and serum. Once injected, the platelets degranulate and release activate growth factors and cytokines to promote healing. One injection may be all you need, however, there are times where multiple injections may provide additional benefit. Not covered by insurance.
Mesenchymal Stem Cell Injections is another non operative option. Bone marrow is aspirated from your pelvis and centrifuged in a special kit to concentrate the stem cells, which are then reinjected into the shoulder. The goals are to change the living microenvironment of the tendon, up regulating collagen formation, and promote tendon cell healing and reorganization. Not covered by insurance.
Operative
If non-operative treatment fails to relieve the pain, your surgeon may suggest surgery. Decompressing the calcium deposition can be performed through a minimally-invasive arthroscopic surgery. During surgery, the surgeon gets to the calcium deposit by cutting through muscles and other surrounding tissues. You may need a rotator cuff repair following the decompression depending on how large the calcium deposition is.
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After Surgery
Rehabilitation after shoulder surgery can be a slow process. You will probably need to attend therapy sessions for six to eight weeks, and you should expect full recovery to take three to four months. Getting the shoulder moving as soon as possible is important. However, this must be balanced with the need to protect the healing tissues.
Your surgeon may have you wear a sling to support and protect the shoulder for a few days after surgery. Ice and electrical stimulation treatments may be used during your first few therapy sessions to help control pain and swelling from the surgery. Your therapist may also use massage and other types of hands-on treatments to ease muscle spasm and pain.
Therapy can progress quickly after a simple arthroscopic resection. Treatments start out with range-of-motion exercises and gradually work into active stretching and strengthening. You just need to be careful to avoid doing too much, too quickly.
Therapy goes slower after open surgery, where the shoulder muscles have been cut. Therapists will usually wait up to two to three weeks before starting range-of-motion exercises. Exercises begin with passive movements. In passive exercises, your shoulder joint is moved, but your muscles stay relaxed. Your therapist gently moves your joint and gradually stretches your arm. You may be taught how to do passive exercises at home.
Active therapy starts four to six weeks after surgery. You use your own muscle power in active range-of-motion exercises. You may begin with light isometric strengthening exercises. These exercises work the muscles without straining the healing tissues.
At about six weeks you start doing heavier strengthening. Exercises focus on improving the strength and control of the rotator cuff muscles and the muscles around the shoulder blade. Your therapist will help you retrain these muscles to keep the ball of the humerus in the socket. This helps your shoulder move smoothly during all your activities.
Some of the exercises you’ll do are designed get your shoulder working in ways that are similar to your work tasks and sport activities. Your therapist will help you find ways to do your tasks that don’t put too much stress on your shoulder. Before your therapy sessions end, your therapist will teach you a number of ways to avoid future problems.