Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học quốc tế đề tài : Outcomes of decompression for lumbar spinal canal stenosis based upon preoperative radiographic severity | Journal of Orthopaedic Surgery and Research Research article BioMed Central Open Access Outcomes of decompression for lumbar spinal canal stenosis based upon preoperative radiographic severity Bradley K Weiner 1 Nilesh M Patel2 and Matthew A Walker2 Address Division of Spinal Surgery Department of Orthopaedics The Methodist Hospital Texas Medical Center Houston Texas USA and 2Department of Orthpaedics Summa Health Systems Akron Ohio USA Email Bradley K Weiner - bkweiner@ Nilesh M Patel - npatel@ Matthew A Walker - mwalker@ Corresponding author Published 8 March 2007 Received 17 January 2006 Journal of Orthopaedic Surgery and Research 2007 2 3 doi I749-799X-2-3 Accepted 8 March 2007 This article is available from http content 2 1 3 2007 Weiner et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background The relationship between severity of preoperative radiographic findings and surgical outcomes following decompression for lumbar degenerative spinal canal stenosis is unclear. Our aim in this paper was to gain insight into this relationship. We determined pre-operative radiographic severity on MRI scans using strict methodological controls and correlated such severity with post-operative outcomes using prospectively collected data. Methods Twenty-seven consecutive patients undergoing decompression for isolated degenerative spinal canal stenosis at L4-L5 were included. We measured cross-sectional area on MRI using the technique of Hamanishi. We categorized the severity of stenosis using Laurencin and Lipson s Stenosis Ratio . We determined pre-operative status prospectively and post-operative outcomes using Weiner and Fraser s Neurogenic .
