International Chiropractic Pediatric AssociationElderly Women with ‘Dowager’s Hump’ May Be At Higher Risk of Earlier Death
26 May 2009
Hyperkyphosis, or “dowager’s hump” the exaggerated forward curvature of the upper spine seen commonly in elderly women may predict earlier death in women whether or not they have vertebral osteoporosis, UCLA researchers have found.
In a study published in the May 19 issue of Annals of Internal Medicine, researchers found that older white women with both vertebral fractures and the increased spinal curvature that results in the bent-over posture characteristic of hyperkyphosis had an elevated risk for earlier death. The finding was independent of other factors that included age and underlying spinal osteoporosis.
Women who had only hyperkyphosis, without vertebral fractures, did not show an increased risk for premature death.
Hyperkyphosis can be caused by a number of factors besides osteoporosis, including habitual poor posture and degenerative diseases of the muscles and intervertebral discs.
“Just being bent forward may be an important clinical finding that should serve as a trigger to seek medical evaluation for possible spinal osteoporosis, as vertebral fractures more often than not are a silent disease,” said Dr. Deborah Kado, an associate professor of orthopedic surgery and medicine at the David Geffen School of Medicine at UCLA and the study’s primary investigator. “We demonstrated that having this age-related postural change is not a good thing. It could mean you’re likely to die sooner.”
For the study, the researchers reviewed data on 610 women, age 67 to 93, from a cohort of 9,704 participants in the Study of Osteoporotic Fractures. The participants were recruited between 1986 and 1988 in Baltimore, Md.; Minneapolis, Minn.; Portland, Ore.; and Pennsylvania’s Monongahela Valley. Researchers measured spinal curvature with a flexicurve and assessed vertebral fractures from spinal radiographs; they assessed mortality based on follow-ups averaging 13.5 years.
Adjusting for age, as well as osteoporosis-related factors such as low bone density, moderate and severe vertebral fractures, and the number of prevalent vertebral fractures, the researchers found that women with previous vertebral fractures and increasing degrees of spinal curvature were at increased mortality risk from the spinal condition, regardless of age, smoking, spinal bone-mineral density, or the number and severity of their spinal fractures.
These study findings provide evidence that it is not just vertebral fracture alone but the associated increased spinal curvature that may be most predictive of adverse health outcomes. Other studies linking hyperkyphosis to poor health, such as impaired physical function, increased fall risk, fractures and mortality, have been unable to exclude the possibility that vertebral fractures alone were the underlying explanation for the findings.
The researchers note several caveats. This study focused on women, though hyperkyphosis also affects men; measurements for vertebral fractures were based only on height ratios, which could lead to misclassification of other causes of height ratio decreases, such as Scheuermann disease; and the timing of the assessments could have affected the results, though it’s unlikely to have made much difference.
However, this study demonstrates a possible association between hyperkyphosis and increased risk for earlier death independent of the number and severity of vertebral fractures or osteoporosis in older women, the researchers write.
“These results add to the growing literature that suggests that hyperkyphosis is a clinically important finding. Because it is readily observed and is associated with ill health in older persons, hyperkyphosis should be recognized as a geriatric syndrome a ‘multifactorial health condition that occurs when the accumulated effect of impairments in multiple systems renders a person vulnerable to situational challenges.’”
Study co-authors include Arun S. Karlamangla of UCLA; Li-Yung Lui and Steven R. Cummings of the California Pacific Medical Center Research Institute; and Kristine E. Ensrud and Howard A. Fink of the University of Minnesota.
The National Institute of Arthritis and Musculoskeletal and Skin Diseases and the National Institute on Aging funded this study.
The UCLA Department of Orthopaedic Surgery provides consultation and treatment for disorders of the musculoskeletal system. Department faculty members provide comprehensive services for such specialties as joint replacement and reconstructive surgery, microvascular surgery, sports medicine, arthroscopy, foot and ankle surgery, hand surgery, pediatric orthopedics, spinal diseases, orthopedic trauma, orthopedic oncology, and metabolic bone disease. In 1998, UCLA and Los Angeles Orthopaedic Hospital formed a strategic alliance through which Orthopaedic Hospital was integrated with UCLA in the replacement facility for Santa Monica UCLA Medical Center and Orthopaedic Hospital.
Source: University of California, Los Angeles (UCLA)
Article URL: http://www.medicalnewstoday.com/articles/151328.php
Main News Category: Bones / Orthopaedics
Also Appears In: Seniors / Aging, Women’s Health / Gynecology
Quoted from Maximized Living newsletter: http://maximizedliving.com/Home.aspx, posted to Gibsons Chiropractic on 08-28-2010
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