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Interspinous process spacers.

David H Kim1, Todd J Albert

  • 1Department of Orthopaedic Surgery, New England Baptist Hospital, Boston, MA 02120, USA.

The Journal of the American Academy of Orthopaedic Surgeons
|April 12, 2007
PubMed
Summary
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Interspinous process spacers offer a less invasive option for lumbar spinal stenosis pain when conservative treatments fail. However, more long-term data is needed to confirm their durability and safety.

Area of Science:

  • Orthopedics
  • Neurosurgery
  • Spinal Surgery

Background:

  • Neurogenic claudication from lumbar spinal stenosis often requires intervention beyond conservative care.
  • Limited treatment options exist for patients with moderate to severe symptoms unresponsive to non-surgical measures.

Purpose of the Study:

  • To evaluate the role of interspinous process spacers as a less invasive surgical option for lumbar spinal stenosis.
  • To assess the short-term efficacy and identify limitations in medium- and long-term data for this technology.

Main Methods:

  • Review of early biomechanical and clinical studies on interspinous process spacers.
  • Analysis of existing data regarding short-term efficacy in treating spinal stenosis-related claudication.

Related Experiment Videos

Main Results:

  • Early data suggest short-term efficacy of interspinous process spacers for neurogenic claudication.
  • Significant gaps exist in medium- and long-term data, particularly concerning durability and device-related risks.

Conclusions:

  • Interspinous process spacers represent a promising technology for specific patient populations with lumbar spinal stenosis.
  • Further long-term clinical follow-up studies are essential to establish the definitive role and safety of these devices.