{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T06:31:14Z","timestamp":1788849074642,"version":"build-2803163510"},"reference-count":19,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2021,3,26]],"date-time":"2021-03-26T00:00:00Z","timestamp":1616716800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background: Multifocal intra-and-extraspinal lumbar stenotic lesions could be decompressed with one endoscopic surgical approach, which has the advantages of functional structure preservation, technical efficacy, and safety. Methods: A retrospective study was performed on 48 patients who underwent uniportal endoscopic contralateral approach due to coexisting lateral recess, foraminal, and extraforaminal stenosis at the L5-S1 level. Foraminal stenosis grade and postoperative dysesthesia (POD) were analyzed. Visual analog scale (VAS) pain scores, modified Oswestry Disability Index (ODI) scores, and MacNab criteria for evaluating pain disability and response were analyzed. Results: The foraminal stenosis grade of the treated spinal levels was grade 1 (n = 16, 33%), grade 2 (n = 20, 42%), and grade 3 (n = 12, 25%). The rate of occurrence of POD grade 2 and above, which may be related to intraoperative dorsal root ganglion (DRG) retraction injury, was revealed to be 4.2% (two with grade 2, none with grade 3). The patients showed favorable clinical outcomes. Conclusions: Uniportal endoscopic interlaminar contralateral approach is an effective procedure to resolve combined stenosis (lateral recess, foraminal, and extraforaminal region) with one surgical approach at the L5-S1 level. It may be a minimal DRG retracting and facet joint preserving procedure in foraminal and extraforaminal decompression.<\/jats:p>","DOI":"10.3390\/jcm10071364","type":"journal-article","created":{"date-parts":[[2021,3,26]],"date-time":"2021-03-26T13:17:53Z","timestamp":1616764673000},"page":"1364","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":31,"title":["The Novel Technique of Uniportal Endoscopic Interlaminar Contralateral Approach for Coexisting L5-S1 Lateral Recess, Foraminal, and Extraforaminal Stenosis and Its Clinical Outcomes"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7630-2414","authenticated-orcid":false,"given":"Ji Yeon","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Spine Center, Leon Wiltse Memorial Hospital, Anyang 14112, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5361-5234","authenticated-orcid":false,"given":"Hyeun Sung","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Spine Center, Nanoori Gangnam Hospital, Seoul 06048, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun Bok","family":"Jeon","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Spine Center, Nanoori Gangnam Hospital, Seoul 06048, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun Hyung","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Chosun University School of Medicine, Gwangju 61453, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun Hwan","family":"Park","sequence":"additional","affiliation":[{"name":"The Faculty of Medicine of the University of Debrecen, Nagyerdei krt. 94, 4032 Debrecen, Hungary"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Il-Tae","family":"Jang","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Spine Center, Nanoori Gangnam Hospital, Seoul 06048, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,3,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"253","DOI":"10.1016\/j.berh.2009.11.001","article-title":"Lumbar spinal stenosis","volume":"24","author":"Genevay","year":"2010","journal-title":"Best Pract. 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