{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T12:24:35Z","timestamp":1787055875926,"version":"build-2736575974"},"reference-count":27,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T00:00:00Z","timestamp":1787011200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Surg."],"abstract":"<jats:sec>\n                    <jats:title>Study design<\/jats:title>\n                    <jats:p>Retrospective cohort study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To evaluate radiographic durability and clinical outcomes following placement of a novel expandable interlaminar stabilization device for single-level lumbar spinal stenosis. Specifically, we aimed to: 1) quantify immediate postoperative posterior column distraction; 2) determine whether foraminal expansion is improved postoperatively without radiographic subsidence; and (3) assess potential improvements in patient-reported pain\/clinical outcomes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      A retrospective review was performed of adult patients undergoing single-level decompression supplemented by an interlaminar device for symptomatic lumbar spinal stenosis by a single surgeon from 2024 to 2025. Radiographic parameters included anterior, middle, and posterior disc height, foraminal height, and segmental lordosis that were measured preoperatively and longitudinally through 12 months. Postoperative changes were assessed relative to preoperative using paired t-tests, with longitudinal trends analyzed by linear mixed-effects modeling. Clinical outcomes were assessed using Visual Analog Scale (VAS) pain scores. Complications and reoperations were recorded, with statistical significance defined as\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&amp;lt;\u20090.05.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      A total of 33 patients (mean age 72.6\u2009\u00b1\u200910.0 years) were included. Posterior disc height increased from 0.46\u2005cm to 0.58\u2005cm (mean +0.12\u2005cm,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&amp;lt;\u20090.001), and foraminal height increased from 1.88\u2005cm to 2.13\u2005cm (mean +0.26\u2005cm,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&amp;lt;\u20090.001). There were no significant changes in anterior disc height, middle disc height, or segmental lordosis. Mixed-effects modeling demonstrated no progressive loss of posterior disc height\/foraminal expansion through 12 months postoperatively. Mean VAS improved from 6.8 preoperatively to 4.5 at latest follow-up (mean \u22122.36,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&amp;lt;\u20090.001). 31\/33 patients (93.9%) had no perioperative complications; two (6.1%) required hardware removal following unrelated postoperative trauma or spinous process fracture.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Expandable interlaminar stabilization produced immediate posterior column distraction and foraminal expansion improved at 12 months postoperatively. Clinically meaningful pain reduction was observed in this lumbar stenosis cohort. Our findings support the biomechanical durability and clinical efficacy of interlaminar posterior column stabilization as an adjunct to decompression.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fsurg.2026.1881593","type":"journal-article","created":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T11:31:06Z","timestamp":1787052666000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Improved foraminal expansion and pain scores following placement of novel expandable interlaminar stabilization device for lumbar spinal stenosis"],"prefix":"10.3389","volume":"13","author":[{"given":"Robert P.","family":"Norton","sequence":"first","affiliation":[{"name":"Florida Spine Associates","place":["Boca Raton, FL, United States"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ian","family":"Koch","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Broward Health","place":["Fort Lauderdale, FL, United States"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kendra","family":"Primavera","sequence":"additional","affiliation":[{"name":"Florida Spine Associates","place":["Boca Raton, FL, United States"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roy Y.","family":"Miloh","sequence":"additional","affiliation":[{"name":"Rothman Orthopaedic Institute, Thomas Jefferson University Hospital","place":["Philadelphia, PA, United States"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander R.","family":"Vaccaro","sequence":"additional","affiliation":[{"name":"Rothman Orthopaedic Institute, Thomas Jefferson University Hospital","place":["Philadelphia, PA, United States"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mitchell","family":"Ng","sequence":"additional","affiliation":[{"name":"Rothman Orthopaedic Institute, Thomas Jefferson University Hospital","place":["Philadelphia, PA, United States"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,8,18]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"1688","DOI":"10.1001\/jama.2022.5921","article-title":"Diagnosis and management of lumbar spinal stenosis: a review","volume":"327","author":"Katz","year":"2022","journal-title":"JAMA"},{"key":"B2","doi-asserted-by":"publisher","first-page":"818","DOI":"10.4184\/asj.2015.9.5.818","article-title":"Lumbar stenosis: a recent update by review of literature","volume":"9","author":"Lee","year":"2015","journal-title":"Asian Spine J"},{"key":"B3","doi-asserted-by":"publisher","first-page":"1876","DOI":"10.1007\/s00586-023-07694-5","article-title":"Biomechanics after spinal decompression and posterior instrumentation","volume":"32","author":"Burkhard","year":"2023","journal-title":"Eur Spine J Off Publ Eur Spine Soc Eur Spinal Deform Soc Eur Sect Cerv Spine Res Soc"},{"key":"B4","doi-asserted-by":"publisher","first-page":"213","DOI":"10.1097\/BSD.0000000000001266","article-title":"Instrumented versus noninstrumented spinal fusion for degenerative lumbar spondylolisthesis: a systematic review","volume":"35","author":"Hirase","year":"2022","journal-title":"Clin Spine Surg"},{"key":"B5","doi-asserted-by":"publisher","first-page":"e37351","DOI":"10.1097\/MD.0000000000037351","article-title":"Bibliometric analysis of interspinous device in treatment of lumbar degenerative diseases","volume":"103","author":"Hu","year":"2024","journal-title":"Medicine (Baltimore)"},{"key":"B6","doi-asserted-by":"publisher","first-page":"e0265926","DOI":"10.1371\/journal.pone.0265926","article-title":"Optimization of a lumbar interspinous fixation device for the lumbar spine with degenerative disc disease","volume":"17","author":"Heo","year":"2022","journal-title":"PLoS One"},{"key":"B7","doi-asserted-by":"publisher","first-page":"881","DOI":"10.1007\/s00586-023-08119-z","article-title":"Is the interspinous process device safe and effective in elderly patients with lumbar degeneration? A systematic review and meta-analysis of randomized controlled trials","volume":"33","author":"Han","year":"2024","journal-title":"Eur Spine J Off Publ Eur Spine Soc Eur Spinal Deform Soc Eur Sect Cerv Spine Res Soc"},{"key":"B8","doi-asserted-by":"publisher","first-page":"417","DOI":"10.1016\/j.wneu.2024.03.054","article-title":"Decompression alone versus interspinous\/interlaminar device placement for degenerative lumbar pathologies","volume":"185","author":"Pennington","year":"2024","journal-title":"Systematic Review and Meta-Analysis. World Neurosurg"},{"key":"B9","doi-asserted-by":"publisher","first-page":"S27","DOI":"10.1007\/s00586-011-1763-0","article-title":"Critical analysis of lumbar interspinous devices failures: a retrospective study","author":"Tamburrelli","year":"2011","journal-title":"Eur Spine J Off Publ Eur Spine Soc Eur Spinal Deform Soc Eur Sect Cerv Spine Res Soc"},{"key":"B10","doi-asserted-by":"publisher","first-page":"17","DOI":"10.25259\/SNI_1007_2023","article-title":"Perspective: efficacy and outcomes for different lumbar interspinous devices (ISD) vs. Open surgery to treat lumbar spinal stenosis (LSS)","volume":"15","author":"Epstein","year":"2024","journal-title":"Surg Neurol Int"},{"key":"B11","doi-asserted-by":"publisher","first-page":"s-0034","DOI":"10.1055\/s-0034-1376703","article-title":"The new dynamic interlaminar device for the treatment of early and late lumbar degenerative problems","volume":"4","author":"Darwono","year":"2014","journal-title":"Glob Spine J"},{"key":"B12","doi-asserted-by":"publisher","first-page":"291","DOI":"10.1186\/s13018-020-01812-5","article-title":"Interlaminar stabilization offers greater biomechanical advantage compared to interspinous stabilization after lumbar decompression: a finite element analysis","volume":"15","author":"Lu","year":"2020","journal-title":"J Orthop Surg"},{"key":"B13","doi-asserted-by":"publisher","first-page":"617","DOI":"10.1016\/j.wneu.2010.05.038","article-title":"Interlaminar spacer: a review of its mechanism, application, and efficacy","volume":"74","author":"Lo","year":"2010","journal-title":"World Neurosurg"},{"key":"B14","year":""},{"key":"B15","doi-asserted-by":"publisher","first-page":"177","DOI":"10.1016\/j.wneu.2015.08.069","article-title":"Paradoxical radiographic changes of coflex interspinous device with Minimum 2-year follow-up in lumbar spinal stenosis","volume":"85","author":"Lee","year":"2016","journal-title":"World Neurosurg"},{"key":"B16","doi-asserted-by":"publisher","first-page":"E14","DOI":"10.3171\/2015.7.FOCUS15244","article-title":"Failure rates and complications of interspinous process decompression devices: a European multicenter study","volume":"39","author":"Gazzeri","year":"2015","journal-title":"Neurosurg Focus"},{"key":"B17","doi-asserted-by":"publisher","first-page":"583","DOI":"10.3171\/2023.5.SPINE23116","article-title":"Does low-back pain improve after decompressive spinal surgery? A prospective observational study from the British spine registry","volume":"39","author":"Knight","year":"2023","journal-title":"J Neurosurg Spine"},{"key":"B18","doi-asserted-by":"publisher","first-page":"478","DOI":"10.31616\/asj.2021.0138","article-title":"Meeting patient expectations or achieving a Minimum clinically important difference: predictors of satisfaction among lumbar fusion patients","volume":"16","author":"Cha","year":"2022","journal-title":"Asian Spine J"},{"key":"B19","doi-asserted-by":"publisher","first-page":"65","DOI":"10.1016\/j.pain.2007.05.004","article-title":"Pseudoradicular and radicular low-back pain\u2013a disease continuum rather than different entities? Answers from quantitative sensory testing","volume":"135","author":"Freynhagen","year":"2008","journal-title":"Pain"},{"key":"B20","doi-asserted-by":"publisher","first-page":"97","DOI":"10.1007\/s11916-002-0005-x","article-title":"Chronic lumbar spine and radicular pain: pathophysiology and treatment","volume":"6","author":"Wheeler","year":"2002","journal-title":"Curr Pain Headache Rep"},{"key":"B21","doi-asserted-by":"publisher","first-page":"2079","DOI":"10.2147\/JPR.S453343","article-title":"24-Month Outcomes of indirect decompression using a minimally invasive interspinous fixation device versus standard open direct decompression for lumbar spinal stenosis: a prospective comparison","volume":"17","author":"Baranidharan","year":"2024","journal-title":"J Pain Res"},{"key":"B22","doi-asserted-by":"publisher","first-page":"46","DOI":"10.1097\/AIA.0000000000000497","article-title":"Indirect and direct lumbar spine decompression: indications, patient selection, efficacy, and outcomes","volume":"64","author":"Przkora","year":"2026","journal-title":"Int Anesthesiol Clin"},{"key":"B23","first-page":"561","volume-title":"Interspinous Devices","author":"Orndorff","year":"2021"},{"key":"B24","doi-asserted-by":"publisher","first-page":"1529","DOI":"10.1097\/BRS.0b013e31829a6d0a","article-title":"Decompression and coflex interlaminar stabilization compared with decompression and instrumented spinal fusion for spinal stenosis and low-grade degenerative spondylolisthesis: two-year results from the prospective, randomized, multicenter, food and drug administration investigational device exemption trial","volume":"38","author":"Davis","year":"2013","journal-title":"Spine"},{"key":"B25","doi-asserted-by":"publisher","first-page":"1329","DOI":"10.1097\/BRS.0b013e3181e0f04d","article-title":"Surgical versus nonoperative treatment for lumbar spinal stenosis four-year results of the spine patient outcomes research trial","volume":"35","author":"Weinstein","year":"2010","journal-title":"Spine"},{"key":"B26","doi-asserted-by":"publisher","first-page":"E9","DOI":"10.3171\/2015.7.FOCUS15259","article-title":"Iatrogenic spondylolisthesis following laminectomy for degenerative lumbar stenosis: systematic review and current concepts","volume":"39","author":"Guha","year":"2015","journal-title":"Neurosurg Focus"},{"key":"B27","doi-asserted-by":"publisher","first-page":"6","DOI":"10.14444\/3006","article-title":"Evaluation of decompression and interlaminar stabilization compared with decompression and fusion for the treatment of lumbar spinal stenosis: 5-year follow-up of a prospective, randomized, controlled trial","volume":"10","author":"Musacchio","year":"2016","journal-title":"Int J Spine Surg"}],"container-title":["Frontiers in Surgery"],"original-title":[],"link":[{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fsurg.2026.1881593\/full","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T11:31:07Z","timestamp":1787052667000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fsurg.2026.1881593\/full"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,8,18]]},"references-count":27,"alternative-id":["10.3389\/fsurg.2026.1881593"],"URL":"https:\/\/doi.org\/10.3389\/fsurg.2026.1881593","relation":{},"ISSN":["2296-875X"],"issn-type":[{"value":"2296-875X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,8,18]]},"article-number":"1881593"}}