Cubital tunnel syndrome results from prolonged flexing of the elbow, experts say
TUESDAY, June 2 (HealthDay News) -- First came Nintendo thumb. Then, Guitar Hero wrist. Now, for the latest affliction of the wired age, it's cell phone elbow.
Medically known as cubital tunnel syndrome, cell phone elbow is numbness, tingling and pain in the forearm and hand caused by compression of the ulnar nerve, which passes along the bony bump on the inside of the elbow.
One of the causes of pressure on the ulnar nerve? Too much gabbing, often brought on by those cell phone plans with unlimited minutes, experts say.
Prolonged flexing of the elbow, such as when you hold a cell phone to your ear while closing sales, talking to your mother or keeping tabs on your teens while you're at work, puts tension on the ulnar nerve. In susceptible people, holding the bent-elbow position for extended periods can lead to decreased blood flow, inflammation and compression of the nerve.
"Repetitive, sustained stretching of the nerve is like stepping on a garden hose," said Dr. Peter J. Evans, director of the Cleveland Clinic's Hand and Upper Extremity Center. "With the hose, you're blocking the flow of water. With the elbow, you're blocking the blood flow to the nerve, which causes it to misfire and short circuit."
The first symptoms patients often notice include numbness, tingling or aching in the forearm and hand, a pain similar to hitting your "funny bone." (The unpleasant sensation of hitting your "funny bone" is actually your ulnar nerve.)
As symptoms progress, they can include a loss of muscle strength, coordination and mobility that can make writing and typing difficult. In chronic, untreated cases, the ring finger and pinky can become clawed, Evans and colleagues note in a report in the May issue of the Cleveland Clinic Journal of Medicine.
Though there are no solid figures on how many peop
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