Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Young Men and Elderly Women at Biggest Risk for Shoulder Dislocations

02.03.2010
Study Shows Majority of Injuries Occur During Sports and Recreational

The shoulder joint is the most mobile joint in the body and consequently one of the most commonly dislocated joints.

An article published in the March 2010 issue of The Journal of Bone and Joint Surgery (JBJS) reveals that the majority of all shoulder dislocations occur during sports activities and young males are at a higher risk. The study also shows a high rate of shoulder dislocation in elderly women.

The overall incidence rate was 23.9 shoulder dislocations per 100,000 person years (the product of the number of years times the number of members of a population who have been affected by a certain condition). While this is more than double the previous rate reported for shoulder dislocations for the U.S. general population, it is still less than the rates of other common musculoskeletal injuries seen in emergency rooms, such as injuries to the lower back, knee and foot.

“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.”

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.
Often the dislocation will tear ligaments or tendons in the shoulder or even damage nearby nerves. To treat the dislocation, the doctor must manipulate the arm bone (the humerus) and replace it in the shoulder socket. This stops the severe pain and allows for the injured tissues to heal.

“Individuals who dislocate their shoulders should see an orthopaedic surgeon. While not all patients require surgery, an orthopaedist can best counsel patients on the treatment options and expected outcomes,” said Dr. Owens.

Disclosure: The authors did not receive any outside funding or grants in support of their research for or preparation of this work. Neither they nor a member of their immediate families received payments or other benefits or a commitment or agreement to provide such benefits from a commercial entity.

The opinions presented by Dr Owens are his own and not the official positions of the US Army, Department of Defense, or US government.

Kristina Findlay | EurekAlert!
Further information:
http://www.aaos.org

More articles from Studies and Analyses:

nachricht Europe’s Demographic Future. Where the Regions Are Heading after a Decade of Crises
10.08.2017 | Berlin-Institut für Bevölkerung und Entwicklung

nachricht Scientists reveal source of human heartbeat in 3-D
07.08.2017 | University of Manchester

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

What the world's tiniest 'monster truck' reveals

23.08.2017 | Life Sciences

Treating arthritis with algae

23.08.2017 | Life Sciences

Witnessing turbulent motion in the atmosphere of a distant star

23.08.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>