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Shot in arm plus physical therapy doesn't help tennis elbow: Study
February 5th, 2013
04:02 PM ET

Shot in arm plus physical therapy doesn't help tennis elbow: Study

Weekend sports warriors take note - that pain radiating out of your elbow may be tennis elbow. But don't be so quick to ask your doctor for a cortisone shot.

Research has shown cortisone, or corticosteroid shots, can alleviate the pain in the initial weeks, but have little effectiveness in the long run, and do nothing to reduce recurrence rates.

Doctors have prescribed physical therapy, also known as physiotherapy, in conjunction with the shots, hoping to increase the cortisone's long-term effectiveness, but a new study in this week's Journal of the American Medical Association finds that the physical therapy doesn't aid the cortisone shots at all.It's contrary to what Bill Vicenzino, one of the authors of the study, expected. "I was surprised to find that addition of physiotherapy did not reduce the recurrence or lift the success rate in the long term."

"We were also very surprised that the addition of steroid to physiotherapy tends to diminish the effectiveness of the physiotherapy," he said.

The study evaluated 165 patients who had pain from tennis elbow for more than six weeks. Patients were divided into four groups - one group given just cortisone shots, another group given placebo shots, a third group receiving both the steroid and the physical therapy, and a final group receiving a placebo shot and physical therapy.

The study found that after a year, those who had the cortisone shots had the least successful outcomes and highest rates of recurrence. And the addition of physical therapy made little difference to the shots. However, physical therapy alone seems to provide the best outcome, with just under a 5% recurrence rate after a year.

Almost half of all people who play racquet sports like tennis, squash, or racquetball have tennis elbow, but racquet sports aren't the only way to get it. Any sort of activity that requires a lot of twisting or gripping motion, like pulling weeds, using a screwdriver, or using a computer mouse can also inflame the tendon that connects your forearm muscles to your elbow.
Dr. R. Amadeus Mason, who was not involved with the study, remarked that it has been standard practice for some time to use saline or lidocaine shots in place of cortisone. Mason is an assistant professor in the department of Orthopedics and Family Medicine at Emory University and advocates for physical therapy.

"The recommendation has been don’t use steroid, use either saline and mechanical treatment, and going back to physical therapy as your first line," he said.

But tennis elbow is just difficult to treat, he noted. "Yes, there are a lot of treatment entities, but when you go back and look, the treatment entities aren’t consistent across the boards."


Filed under: Conditions • Diet and Fitness • Living Well

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Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.