{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,12]],"date-time":"2026-08-12T00:28:47Z","timestamp":1786494527265,"version":"build-2736575974"},"reference-count":25,"publisher":"Elsevier BV","issue":"9","license":[{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2026,4,12]],"date-time":"2026-04-12T00:00:00Z","timestamp":1775952000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","thespinejournalonline.com","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["The Spine Journal"],"published-print":{"date-parts":[[2026,9]]},"DOI":"10.1016\/j.spinee.2026.04.009","type":"journal-article","created":{"date-parts":[[2026,4,14]],"date-time":"2026-04-14T13:49:04Z","timestamp":1776174544000},"page":"1707-1716","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":0,"title":["Extraforaminal versus central lumbar disc herniations: clinical features and surgical outcome comparing data from a national spine registry (NORspine)"],"prefix":"10.1016","volume":"26","author":[{"given":"Jo\u00e3o Andr\u00e9 Barroso Pereira Roque","family":"dos Reis","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Greger","family":"L\u00f8nne","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Oliver","family":"Grundnes","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ole Kristian","family":"Alhaug","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"issue":"1 Suppl","key":"10.1016\/j.spinee.2026.04.009_bib0001","doi-asserted-by":"crossref","first-page":"S187","DOI":"10.1016\/j.otsr.2012.11.005","article-title":"Surgical discectomy for lumbar disc herniation: surgical techniques","volume":"99","author":"Blamoutier","year":"2013","journal-title":"Orthop Traumatol Surg Res"},{"key":"10.1016\/j.spinee.2026.04.009_bib0002","article-title":"\u00c5rsrapport 2024 Nasjonalt kvalitets register for ryggkirurgi: resultater og for bed ring stiltak Annual report 2024 National Quality Register for Spinal Surgery (NORSpine)","author":"Solberg","year":"2025","journal-title":"Septentrio Rep"},{"issue":"11","key":"10.1016\/j.spinee.2026.04.009_bib0003","doi-asserted-by":"crossref","first-page":"2525","DOI":"10.1016\/j.spinee.2014.04.022","article-title":"Lumbar disc nomenclature: version 2.0: recommendations of the combined task forces of the North American Spine Society, the American Society of Spine Radiology and the American Society of Neuroradiology","volume":"14","author":"Fardon","year":"2014","journal-title":"Spine J"},{"issue":"3","key":"10.1016\/j.spinee.2026.04.009_bib0004","doi-asserted-by":"crossref","first-page":"155","DOI":"10.14245\/kjs.2013.10.3.155","article-title":"The comparisons of surgical outcomes and clinical characteristics between the far lateral lumbar disc herniations and the paramedian lumbar disc herniations","volume":"10","author":"Park","year":"2013","journal-title":"Korean J Spine"},{"issue":"8","key":"10.1016\/j.spinee.2026.04.009_bib0005","doi-asserted-by":"crossref","first-page":"1526","DOI":"10.1016\/j.spinee.2013.09.020","article-title":"Similar outcome despite slight clinical differences between lumbar radiculopathy induced by lateral versus medial disc herniations in patients without previous foraminal stenosis: a prospective cohort study with 1-year follow-up","volume":"14","author":"M\u00e9rot","year":"2014","journal-title":"Spine J"},{"issue":"6","key":"10.1016\/j.spinee.2026.04.009_bib0006","doi-asserted-by":"crossref","first-page":"943","DOI":"10.1302\/0301-620X.79B6.0790943","article-title":"Far lateral lumbar disc herniation. The key to the intertransverse approach","volume":"79","author":"O'Hara","year":"1997","journal-title":"J Bone Joint Surg Br"},{"issue":"10","key":"10.1016\/j.spinee.2026.04.009_bib0007","doi-asserted-by":"crossref","first-page":"491","DOI":"10.1038\/sj.sc.3101319","article-title":"Foraminal and far lateral lumbar disc herniations: surgical alternatives and outcome measures","volume":"40","author":"Epstein","year":"2002","journal-title":"Spinal Cord"},{"issue":"1 Suppl","key":"10.1016\/j.spinee.2026.04.009_bib0008","first-page":"59","article-title":"Long-term follow up of patients surgically treated by the far-lateral approach for foraminal and extraforaminal lumbar disc herniations","volume":"90","author":"Porchet","year":"1999","journal-title":"J Neurosurg"},{"issue":"1","key":"10.1016\/j.spinee.2026.04.009_bib0009","doi-asserted-by":"crossref","first-page":"21","DOI":"10.21037\/jss.2016.01.05","article-title":"Surgical treatment of far lateral lumbar disc herniation: a safe and simple approach","volume":"2","author":"DO","year":"2016","journal-title":"J Spine Surg"},{"issue":"4","key":"10.1016\/j.spinee.2026.04.009_bib0010","doi-asserted-by":"crossref","first-page":"470","DOI":"10.1302\/0301-620X.101B4.BJJ-2018-1184.R1","article-title":"Complications, reoperations, readmissions, and length of hospital stay in 34 639 surgical cases of lumbar disc herniation","volume":"101-b","author":"Fjeld","year":"2019","journal-title":"Bone Joint J"},{"issue":"7","key":"10.1016\/j.spinee.2026.04.009_bib0011","doi-asserted-by":"crossref","first-page":"e2733","DOI":"10.1097\/MD.0000000000002733","article-title":"Clinical and radiological characteristics of lumbosacral lateral disc herniation in comparison with those of medial disc herniation","volume":"95","author":"Lee","year":"2016","journal-title":"Medicine (Baltimore)"},{"issue":"4","key":"10.1016\/j.spinee.2026.04.009_bib0012","doi-asserted-by":"crossref","first-page":"660","DOI":"10.1007\/s00586-011-2123-9","article-title":"Ultra-long-term outcome of surgically treated far-lateral, extraforaminal lumbar disc herniations: a single-center series","volume":"21","author":"Marquardt","year":"2012","journal-title":"Eur Spine J"},{"issue":"5","key":"10.1016\/j.spinee.2026.04.009_bib0013","doi-asserted-by":"crossref","first-page":"e5","DOI":"10.3171\/foc.1999.7.5.8","article-title":"Microendoscopic approach to far-lateral lumbar disc herniation","volume":"7","author":"Foley","year":"1999","journal-title":"Neurosurg Focus"},{"issue":"11","key":"10.1016\/j.spinee.2026.04.009_bib0014","doi-asserted-by":"crossref","first-page":"3713","DOI":"10.1007\/s00586-023-07929-5","article-title":"The Norwegian registry for spine surgery (NORspine): cohort profile","volume":"32","author":"Mikkelsen","year":"2023","journal-title":"Eur Spine J"},{"issue":"1","key":"10.1016\/j.spinee.2026.04.009_bib0015","doi-asserted-by":"crossref","first-page":"164","DOI":"10.1186\/s12891-023-06267-3","article-title":"Characteristics and outcomes of patients who did not respond to a national spine surgery registry","volume":"24","author":"Kaur","year":"2023","journal-title":"BMC Musculoskelet Disord"},{"issue":"1","key":"10.1016\/j.spinee.2026.04.009_bib0016","doi-asserted-by":"crossref","first-page":"56","DOI":"10.3109\/17453674.2010.548024","article-title":"Would loss to follow-up bias the outcome evaluation of patients operated for degenerative disorders of the lumbar spine?","volume":"82","author":"Solberg","year":"2011","journal-title":"Acta Orthop"},{"issue":"22","key":"10.1016\/j.spinee.2026.04.009_bib0017","doi-asserted-by":"crossref","first-page":"2940","DOI":"10.1097\/00007632-200011150-00017","article-title":"The Oswestry Disability Index","volume":"25","author":"Fairbank","year":"2000","journal-title":"Spine (Phila Pa 1976)"},{"issue":"6","key":"10.1016\/j.spinee.2026.04.009_bib0018","doi-asserted-by":"crossref","first-page":"1073","DOI":"10.1016\/j.jpainsymman.2010.08.016","article-title":"Studies comparing numerical rating scales, verbal rating scales, and visual analogue scales for assessment of pain intensity in adults: a systematic literature review","volume":"41","author":"Hjermstad","year":"2011","journal-title":"J Pain Symptom Manage"},{"issue":"7","key":"10.1016\/j.spinee.2026.04.009_bib0019","doi-asserted-by":"crossref","first-page":"760","DOI":"10.1016\/j.jclinepi.2009.09.009","article-title":"Global Perceived Effect scales provided reliable assessments of health transition in people with musculoskeletal disorders, but ratings are strongly influenced by current status","volume":"63","author":"Kamper","year":"2010","journal-title":"J Clin Epidemiol"},{"issue":"10","key":"10.1016\/j.spinee.2026.04.009_bib0020","doi-asserted-by":"crossref","first-page":"1221","DOI":"10.1016\/j.spinee.2016.06.010","article-title":"Determination of the Oswestry Disability Index score equivalent to a \"satisfactory symptom state\" in patients undergoing surgery for degenerative disorders of the lumbar spine-a Spine Tango registry-based study","volume":"16","author":"van Hooff","year":"2016","journal-title":"Spine J"},{"key":"10.1016\/j.spinee.2026.04.009_bib0021","doi-asserted-by":"crossref","first-page":"n2233","DOI":"10.1136\/bmj.n2233","article-title":"Strengthening the reporting of observational studies in epidemiology using mendelian randomisation (STROBE-MR): explanation and elaboration","volume":"375","author":"Skrivankova","year":"2021","journal-title":"BMJ"},{"key":"10.1016\/j.spinee.2026.04.009_bib0022","article-title":"Comparison of post surgical results in medial and lateral lumbar spine herniated discs: own case series experience","volume":"22","author":"Chirchiglia","year":"2020","journal-title":"Interdiscip Neurosurg"},{"issue":"4","key":"10.1016\/j.spinee.2026.04.009_bib0023","doi-asserted-by":"crossref","first-page":"663","DOI":"10.1007\/s00701-009-0519-7","article-title":"Minimally invasive approach to far lateral lumbar disc herniation: technique and clinical results","volume":"152","author":"Salame","year":"2010","journal-title":"Acta Neurochir (Wien)"},{"issue":"3","key":"10.1016\/j.spinee.2026.04.009_bib0024","doi-asserted-by":"crossref","first-page":"801","DOI":"10.1007\/s00586-021-07093-8","article-title":"Accuracy and agreement of national spine register data for 474 patients compared to corresponding electronic patient records","volume":"31","author":"Alhaug","year":"2022","journal-title":"Eur Spine J"},{"issue":"1","key":"10.1016\/j.spinee.2026.04.009_bib0025","doi-asserted-by":"crossref","first-page":"105","DOI":"10.1007\/s00701-025-06524-5","article-title":"Reliability of surgeon-reported MRI findings to a national spine register","volume":"167","author":"Alhaug","year":"2025","journal-title":"Acta Neurochir (Wien)"}],"container-title":["The Spine Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1529943026001051?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1529943026001051?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,8,11]],"date-time":"2026-08-11T23:51:08Z","timestamp":1786492268000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S1529943026001051"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9]]},"references-count":25,"journal-issue":{"issue":"9","published-print":{"date-parts":[[2026,9]]}},"alternative-id":["S1529943026001051"],"URL":"https:\/\/doi.org\/10.1016\/j.spinee.2026.04.009","relation":{},"ISSN":["1529-9430"],"issn-type":[{"value":"1529-9430","type":"print"}],"subject":[],"published":{"date-parts":[[2026,9]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Extraforaminal versus central lumbar disc herniations: clinical features and surgical outcome comparing data from a national spine registry (NORspine)","name":"articletitle","label":"Article Title"},{"value":"The Spine Journal","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.spinee.2026.04.009","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2026 The Author(s). Published by Elsevier Inc.","name":"copyright","label":"Copyright"}]}}