{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,5]],"date-time":"2026-09-05T13:46:00Z","timestamp":1788615960964,"version":"build-2803163510"},"reference-count":41,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2025,8,20]],"date-time":"2025-08-20T00:00:00Z","timestamp":1755648000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Surgery"],"published-print":{"date-parts":[[2025,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>Spinal endoscopic surgery is widely acknowledged as an effective and minimally invasive approach for treating lumbar disc herniation. Comprehensive descriptions of the endoscopic decompression technique for lumbar spinal stenosis (<jats:styled-content style=\"fixed-case\">LSS<\/jats:styled-content>) are limited in existing literature. With a focus on long\u2010term follow\u2010up outcomes, this study investigates the safety and efficacy of endoscopic decompression using a unilateral interlaminar approach.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Between August 1, 2018, and December 1, 2020, a total of 316 consecutive cases underwent endoscopic decompression for <jats:styled-content style=\"fixed-case\">LSS<\/jats:styled-content> following conservative treatment. Based on specific selection criteria, 176 of these cases were retrospectively included in this study. The minimally invasive decompression was performed using a percutaneous uniportal and lateral interlaminar endoscopic approach under local anesthesia. This endoscopic procedure involved comprehensive decompression of the central canal and unilateral recess, addressing the lamina, hypertrophic ligamentum flavum (<jats:styled-content style=\"fixed-case\">LF<\/jats:styled-content>), and medial osteophytes of the facet joint. Clinical outcomes were assessed using the single continuous walking distance (<jats:styled-content style=\"fixed-case\">SCWD<\/jats:styled-content>) without pain, the modified <jats:styled-content style=\"fixed-case\">MacNab<\/jats:styled-content> criteria, the Oswestry Disability Index (<jats:styled-content style=\"fixed-case\">ODI<\/jats:styled-content>), and the visual analogue scale (<jats:styled-content style=\"fixed-case\">VAS<\/jats:styled-content>). Radiographic changes, both preoperative and postoperative, were documented and analyzed. This analysis included evaluating the stability of the lumbar spine through lumbar hyper\u2010flexion and hyper\u2010extension X\u2010rays, as well as determining the lumbar canal cross\u2010sectional area (<jats:styled-content style=\"fixed-case\">CCA<\/jats:styled-content>) using <jats:styled-content style=\"fixed-case\">CT<\/jats:styled-content> scans.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The mean follow\u2010up period was 47.4\u2009\u00b1\u20097.1\u2009months. The average operative duration was 65.3\u2009\u00b1\u200912.6\u2009min, and the mean estimated blood loss was 10.4\u2009\u00b1\u20098.5\u2009mL. The average length of postoperative hospital stay was 2.2\u2009\u00b1\u20091.3\u2009days. There was a significant improvement in <jats:styled-content style=\"fixed-case\">SCWD<\/jats:styled-content> without pain (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.05). Postoperatively, the <jats:styled-content style=\"fixed-case\">ODI<\/jats:styled-content> and <jats:styled-content style=\"fixed-case\">VAS<\/jats:styled-content> scores for both back and leg pain showed significant reductions (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.05). Based on the modified <jats:styled-content style=\"fixed-case\">MacNab<\/jats:styled-content> criteria, the overall rate of good\u2010to\u2010excellent outcomes was 95.45%. The <jats:styled-content style=\"fixed-case\">CCA<\/jats:styled-content> increased significantly from 52.0\u2009\u00b1\u200911.0 to 122.5\u2009\u00b1\u200912.1\u2009mm<jats:sup>2<\/jats:sup> (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.05). The stability of the spine did not exhibit significant changes compared to the preoperative state.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The unilateral interlaminar approach for bilateral endoscopic decompression in the treatment of <jats:styled-content style=\"fixed-case\">LSS<\/jats:styled-content> demonstrated both safety and efficacy, as evidenced by clinical and radiographic outcomes.<\/jats:p><\/jats:sec>","DOI":"10.1111\/os.70131","type":"journal-article","created":{"date-parts":[[2025,8,21]],"date-time":"2025-08-21T05:35:02Z","timestamp":1755754502000},"page":"2992-3001","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Efficacy and Safety of Unilateral Interlaminar Endoscopic Decompression for Lumbar Spinal Stenosis: A Retrospective Study of 176 Cases With a 3\u20136\u2009Year Follow\u2010Up"],"prefix":"10.1111","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5216-1496","authenticated-orcid":false,"given":"Zhifa","family":"Zhang","sequence":"first","affiliation":[{"name":"Department of Neurosurgery First Medical Center of PLA General Hospital  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhiyong","family":"Yin","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery PLA General Hospital  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rongqiang","family":"Bu","sequence":"additional","affiliation":[{"name":"Department of Spine Beijing Aiyuhua Hospital  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiangyu","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery First Medical Center of PLA General Hospital  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Benzhang","family":"Tao","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery First Medical Center of PLA General Hospital  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Leiming","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Pain First Medical Center of PLA General Hospital  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xifeng","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Orthopedics First Medical Center of PLA General Hospital  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianning","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery First Medical Center of PLA General Hospital  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,8,20]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1093\/pm\/pnz161"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.17219\/acem\/163357"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0042-1748912"},{"issue":"11","key":"e_1_2_10_5_1","article-title":"Surgical Options for Lumbar Spinal Stenosis","volume":"11","author":"Machado G. 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