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Expert Rev Med Devices · Jan 2015
Meta Analysis Comparative StudyStand-alone interspinous spacer versus decompressive laminectomy for treatment of lumbar spinal stenosis.
- Carl Lauryssen, Robert J Jackson, Jeffrey M Baron, Richard A Tallarico, William F Lavelle, Harel Deutsch, Jon E Block, and Fred H Geisler.
- a Neurosurgical Spine Institute , Lakeway , TX 78738 , USA.
- Expert Rev Med Devices. 2015 Jan 1; 12 (6): 763-9.
ObjectiveTo compare the two-year clinical outcomes of a prospective, randomized controlled trial of an FDA-approved interspinous spacer with the compilation of published findings from 19 studies of decompressive laminectomy for the treatment of lumbar spinal stenosis.MethodsBack and leg pain, Oswestry disability index (ODI), and Zurich Claudication Questionnaire (ZCQ) values were compared between spacer- and laminectomy-treated patients preoperatively and at 12 and 24 months.ResultsPercentage improvements between baseline and 24 months uniformly favored patients treated with the spacer for back pain (65% vs. 52%), leg pain (70% vs. 62%), ODI (51% vs. 47%) and ZCQ symptom severity (37% vs. 29%) and physical function (36% vs. 32%).ConclusionBoth treatments provide effective and durable symptom relief of claudicant symptoms. This stand-alone interspinous spacer offers the patient a minimally invasive option with less surgical risk.
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