A Frustrating Injury

Tendinopathies, as these injuries are called, are particularly vexing orthopedic problems that remain poorly understood despite their frequency. “Tendinitis” is a misnomer: rarely are there signs of inflammation, which no doubt accounts for the lack of lasting improvement with steroid shots and anti-inflammatory drugs. They may relieve pain temporarily, but don’t cure the problem.

The underlying pathology of tendinopathies is still a mystery. Even when patients recover, their tendons may continue to look awful, say therapists who do imaging studies. Without a better understanding of the actual causes of tendon pain, it’s hard to develop rational treatments, and even the best specialists may be reduced to trial and error. What works best for one tendon  or one patient  may do little or nothing for another.

Most tendinopathies are precipitated by overuse and commonly afflict overzealous athletes, amateur and professional alike. With or without treatment, they usually take a long time to heal  many months, even a year or more. They can be frustrating and often costly, especially for professional athletes and physically active people like me and Mr. Erde.

In a commentary accompanying the Lancet report, Alexander Scott and Karim M. Khan of the University of British Columbia noted that although “corticosteroid injection does not impair recovery of shoulder tendinopathy, patients should be advised that evidence for even short-term benefits at the shoulder is limited.” Like the Australian reviewers, the commentators concluded that “specific exercise therapy might produce more cures at 6 and 12 months than one or more corticosteroid injections.”

Treatments to Try

Now the question is: What kind of physical therapy gives the best results? Most therapists prescribe eccentric exercises, which involve muscle contractions as the muscle fibers lengthen (for example, when a hand-held weight is lowered from the waist to the thigh). Eccentric exercises must be performed in a controlled manner; uncontrolled eccentric contractions are a common cause of injuries like groin pulls or hamstring strains.

Marilyn Moffat, professor of physical therapy at New York University and president of the World Confederation for Physical Therapy, prefers “very protective” isometric exercises, at least at the outset of treatment until the tendon injury begins to heal. These exercises involve no movement at all, allowing muscles to contract without producing pain. For example, in treating shoulder tendinopathy, she said in an interview, the patient would push the fists against a wall with upper arms against the body and elbows bent at 90 degrees.

In another exercise, the patient sits holding one end of a dense elastic Thera-Band in each hand and, with thumbs up, upper arms at the sides and elbows bent at 90 degrees, tries to pull the hands apart.

“The stronger the shoulder muscles are when the tendinopathy calms down, the better shape the shoulder is in to take over movement without further injury,” Dr. Moffat said. “You don’t want the muscles to weaken, which is what happens when you rest and do nothing. That leaves you vulnerable to further injury.”