Patients who received a bioengineered protein during spinal fusion procedures to correct neck pain had far more complications than patients who did not get it, according to a study released Tuesday.
The study, published Tuesday in The Journal of the American Medical Association, reinforces previous concerns about the use of the proteins in fusion procedures to treat upper spine, or cervical, pain. The substances studied, sold by either Medtronic or Stryker, are not federally approved for cervical procedures, although surgeons are free to use them for that purpose.
The new study, by researchers at Brigham and Women’s Hospital in Boston, reviewed hospital records from 2002 to 2006. Bioengineered proteins, which mimic natural substances that promote bone growth, were first approved in 2002 by the Food and Drug Administration but initially only for use in spinal fusions to alleviate lower, or lumbar, back pain.
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