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Study Results Raise Questions About Cement Injections (Vertebroplasty) For Osteoporotic Spinal Compression Fractures

Date:
August 5, 2009
Source:
Mayo Clinic
Summary:
Researchers have found that relief of pain from vertebral compression fractures, as well as improvement in pain-related dysfunction, were similar in patients treated with vertebroplasty and those treated with simulated vertebroplasty without cement injections.

A new study led by Mayo Clinic researchers has found that relief of pain from vertebral compression fractures, as well as improvement in pain-related dysfunction, were similar in patients treated with vertebroplasty and those treated with simulated vertebroplasty without cement injections.

Vertebroplasty is a widely applied procedure in which medical cement is injected into the spine to relieve pain and improve function in patients who have osteoporotic fractures. This study, funded by the National Institutes of Health, was the first of its kind, using a double-blinded research model to examine the impact of vertebroplasty.

"Though the medical community has been using vertebroplasty for many years, there were no research results to prove whether the efficacy of the treatment relates to the cement injections, patient expectations, or other factors," says the study's leader, David Kallmes, M.D., a Mayo Clinic physician who specializes in radiology and neurosurgery. "The cement is a permanent medical implant, and there is some concern that it places patients at future risk for additional spinal fractures."

Researchers from eight medical centers in the United States, United Kingdom and Australia enrolled a total of 131 patients in the trial. The baseline characteristics of pain and function were similar in the vertebroplasty group containing 68 patients and the control group containing 63 patients. Within days of treatment, both groups showed similar improvements in function and pain. Researchers continue to follow study participants, and one year results will be released at a later date.

"We aren't saying the vertebroplasty doesn't work, because it somehow does," says Dr. Kallmes. "But both sets of patients experienced significant improvements in pain and function a month following the procedure, whether they received cement injections or not. Improvements may be the result of local anesthesia, sedation, patient expectations, or other factors."

"Patients should seek medical advice from their care provider before making a decision about treatment options," Dr. Kallmes advises.

Other centers involved in the research included the University of Washington, Seattle; Nuffield Orthopaedic Centre NHS Trust, Oxford, UK; St. George Hospital, University of New South Wales, Sydney, Australia; Gartnavel General Hospital, Glasgow, UK; Department of Social Medicine, Bristol, UK; Nottingham University Hospital NHS Trust, UK; and Western General Hospital, University of Edinburgh, UK. University of Washington researcher Jerry Jarvik, M.D., coordinated the data gathering and analysis for the project.

Dr. Kallmes says that several related research projects are in progress at Mayo Clinic, including a study of kyphoplasty, which uses a balloon to make space for cement injections, as well as an unblinded trial to measure the impact of local anesthesia on pain.


Story Source:

The above story is based on materials provided by Mayo Clinic. Note: Materials may be edited for content and length.


Journal Reference:

  1. A Randomized Controlled Trial of Vertebroplasty for Osteoporotic Spine Fractures. New England Journal of Medicine, August 5, 2009

Cite This Page:

Mayo Clinic. "Study Results Raise Questions About Cement Injections (Vertebroplasty) For Osteoporotic Spinal Compression Fractures." ScienceDaily. ScienceDaily, 5 August 2009. <www.sciencedaily.com/releases/2009/08/090805171110.htm>.
Mayo Clinic. (2009, August 5). Study Results Raise Questions About Cement Injections (Vertebroplasty) For Osteoporotic Spinal Compression Fractures. ScienceDaily. Retrieved April 24, 2014 from www.sciencedaily.com/releases/2009/08/090805171110.htm
Mayo Clinic. "Study Results Raise Questions About Cement Injections (Vertebroplasty) For Osteoporotic Spinal Compression Fractures." ScienceDaily. www.sciencedaily.com/releases/2009/08/090805171110.htm (accessed April 24, 2014).

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