{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T01:37:57Z","timestamp":1787017077392,"version":"build-2736575974"},"reference-count":31,"publisher":"BMJ","issue":"1","license":[{"start":{"date-parts":[[2023,5,29]],"date-time":"2023-05-29T00:00:00Z","timestamp":1685318400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"name":"Boston Scientific","award":["N\/A"],"award-info":[{"award-number":["N\/A"]}]}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["Reg Anesth Pain Med"],"accepted":{"date-parts":[[2023,4,25]]},"published-print":{"date-parts":[[2024,1]]},"abstract":"<jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Treatment for degenerative lumbar spinal stenosis (LSS) typically begins with conservative care and progresses to minimally invasive procedures, including interspinous spacer without decompression or fusion (ISD) or minimally invasive lumbar decompression (MILD). This study examined safety outcomes and the rate of subsequent spinal procedures among LSS patients receiving an ISD versus MILD as the first surgical intervention.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>100% Medicare Standard Analytical Files were used to identify patients with an ISD or MILD (first procedure=index\u2009date) from 2017 to 2021. ISD and MILD patients were matched 1:1 using propensity score matching based on demographics and clinical characteristics. Safety outcomes and subsequent spinal procedures were captured from index date until end of follow-up. Cox models were used to analyze rates of subsequent surgical interventions, LSS-related interventions, open decompression, fusion, ISD, and MILD. Cox models were used to assess postoperative complications during follow-up and logistic regression to analyze life-threatening complications within 30 days of index procedure.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>A total of 3682 ISD and 5499 MILD patients were identified. After matching, 3614 from each group were included in the analysis (mean age=74 years, mean follow-up=20.0 months). The risk of undergoing any intervention, LSS-related intervention, open decompression, and MILD were 21%, 28%, 21%, and 81% lower among ISD compared with MILD patients. Multivariate analyses showed no significant differences in the risk of undergoing fusion or ISD, experiencing postoperative complications, or life-threatening complications (all p\u22650.241) between the cohorts.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>These results showed ISD and MILD procedures have an equivalent safety profile. However, ISDs demonstrated lower rates of open decompression and MILD.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/rapm-2022-104236","type":"journal-article","created":{"date-parts":[[2023,5,29]],"date-time":"2023-05-29T10:15:18Z","timestamp":1685355318000},"page":"30-35","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":4,"title":["Comparison analysis of safety outcomes and the rate of subsequent spinal procedures between interspinous spacer without decompression versus minimally invasive lumbar decompression"],"prefix":"10.1136","volume":"49","author":[{"given":"Howard L","family":"Rosner","sequence":"first","affiliation":[{"name":"Pain Medicine, Anesthesiology, Cedars-Sinai Medical Center, Los Angeles, California, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7521-1839","authenticated-orcid":false,"given":"Oth","family":"Tran","sequence":"additional","affiliation":[{"name":"Health Economics, Boston Scientific Corp, Valencia, California, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tina","family":"Vajdi","sequence":"additional","affiliation":[{"name":"Pain Medicine, Anesthesiology, Cedars-Sinai Medical Center, Los Angeles, California, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mary A","family":"Vijjeswarapu","sequence":"additional","affiliation":[{"name":"Pain Medicine, Anesthesiology, Cedars-Sinai Medical Center, Los Angeles, California, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2023,5,29]]},"reference":[{"key":"2025101110331294000_49.1.30.1","first-page":"171","article-title":"Lumbar spinal stenosis","volume":"158","author":"Ciricillo","year":"1993","journal-title":"West J Med"},{"issue":"Suppl 2","key":"2025101110331294000_49.1.30.2","doi-asserted-by":"crossref","first-page":"S32","DOI":"10.1093\/pm\/pnz161","article-title":"A review of lumbar spinal stenosis with intermittent Neurogenic Claudication: disease and diagnosis","volume":"20","author":"Deer","year":"2019","journal-title":"Pain Med"},{"key":"2025101110331294000_49.1.30.3","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-020-06339-1"},{"key":"2025101110331294000_49.1.30.4","doi-asserted-by":"publisher","DOI":"10.1016\/j.spinee.2009.03.005"},{"key":"2025101110331294000_49.1.30.5","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2010.338"},{"key":"2025101110331294000_49.1.30.6","doi-asserted-by":"crossref","unstructured":"Parker SL , Anderson LH , Nelson T , et al . 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