Abstract
Lumbar spinal stenosis is a common diagnosis in elderly individuals, and the rates of surgery have risen all over the world. The optimal approach to provide satisfactory decompression and minimize complications for lumbar spinal stenosis remains controversial. The purpose of this study was to evaluate the surgical outcome of interspinous spacers versus decompressive laminectomy in the management of degenerative lumbar canal stenosis. Our prospective, comparative study included 2 groups of patients who were operated on in Ain Shams University Hospitals between January 2010 and December 2014. In the first group, 28 patients underwent decompression and additional implantation ofan interspinous spacer (ISP). In the second group, 25patients underwent decompressive laminectomy (DL). Our statistical results revealed no significant difference in outcome between the 2 groups regarding visual analog scale score for leg pain and Oswestry Low Back Pain Disability Index. However, the improvement (visual analog scale score) for back pain was better in the DL group. Complication and reoperation rates were higher in the ISP group. Although decompression and additional implantation of an ISP are safe procedures, they do not show better improvement in clinical outcome as compared with decompressive laminectomy.
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