The majority of all shoulder dislocations occur during sports activities and young males are at a higher risk, says a study which also shows a high rate of shoulder dislocation in elderly women.
The article has been published in the March 2010 issue of The Journal of Bone and Joint Surgery (JBJS).
Advertisement"Shoulder instability is one of the most common reasons young athletes see orthopaedic surgeons," explained Brett Owens, MD, study co-author, orthopaedic surgeon at Keller Army Hospital in West Point, New York and Associate Professor at the Uniformed Services University of the Health Sciences. "However little has been reported about the incidence of this injury."
To reach the conclusion, Dr. Owens and his colleagues studied 8,940 shoulder dislocations in patients presenting to 100 hospital emergency rooms across the United States from 2002 to 2006. The purpose of the study was to identify the specific groups of individuals at risk, to help direct prevention efforts.
Of all dislocations, the study found: 71.8 percent were in men; 46.8 percent were in patients between 15-29 years; 48.3 percent occurred during sports or recreation; and 37 percent of all sports-related injuries were football or basketball related.
Dislocations most frequently resulted from a fall (58.8 percent), of which 47.7 percent of these falls occurring at home and 33.6 percent occurring at recreation or sports sites.
In women, higher dislocation rates were seen among those aged 80 to 90 years old. This increase was mostly due to falls at home.
"We were not too surprised to find the high number of young males dislocating their shoulders during athletic activity," commented Dr. Owens. "However, the rate of shoulder dislocations among elderly women was higher than we had previously assumed."
The shoulder joint can dislocate forward, backward or downward. The most common shoulder dislocation happens when the shoulder slips forward (anterior instability). The arm bone is moved forward and down and out of its joint.
Dislocated shoulder symptoms include: pain; swelling; numbness; weakness; and bruising.
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