• Alistair Daniel Robert Jones, Ahmad Mounir Wafai, and Amy Louise Easterbrook.
• North Devon District Hospital, Raleigh Park, Barnstaple, Devon, EX31 4JB, UK, alijones@doctors.net.uk.
• Eur Spine J. 2014 Jan 1; 23 (1): 135-41.

Study DesignProspective clinical observational study of low back pain (LBP) in patients undergoing laminectomy or laminotomy surgery for lumbar spinal stenosis (LSS).ObjectivesTo quantify any change in LBP following laminectomy or laminotomy spinal decompression surgery.Patients And Methods119 patients with LSS completed Oswestry Disability Index questionnaire (ODI) and Visual Analogue Scale for back and leg pain, preoperatively, 6 weeks and 1 year postoperatively.ResultsThere was significant (p < 0.0001) reduction in mean LBP from a baseline of 5.14/10 to 3.03/10 at 6 weeks. Similar results were seen at 1 year where mean LBP score was 3.07/10. There was a significant (p < 0.0001) reduction in the mean ODI at 6 weeks and 1 year postoperatively. Mean ODI fell from 44.82 to 25.13 at 6 weeks and 28.39 at 1 year.ConclusionThe aim of surgery in patients with LSS is to improve the resulting symptoms that include radicular leg pain and claudication. This observational study reports statistically significant improvement of LBP after LSS surgery. This provides frequency distribution data, which can be used to inform prospective patients of the expected outcomes of such surgery.

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