{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,29]],"date-time":"2026-05-29T10:31:32Z","timestamp":1780050692492,"version":"3.53.1"},"reference-count":39,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2022,12,13]],"date-time":"2022-12-13T00:00:00Z","timestamp":1670889600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diagnostics"],"abstract":"<jats:p>Full-endoscopic lumbar foraminotomy (FELF) under local anesthesia has been developed as a minimally invasive alternative for lumbar foraminal stenosis. Some authors have described this technique for treating various lumbar spondylolisthesis. However, few studies have reported the outcomes of FELF for foraminal stenosis in patients with stable spondylolisthesis. This study aimed to demonstrate the specific technique and clinical outcomes of FELF for foraminal stenosis in patients with spondylolisthesis. Twenty-three consecutive patients with foraminal stenosis and stable spondylolisthesis were treated with FELF. Among them, 21 patients were followed up for 2 years. Full-endoscopic foraminal decompression via the transforaminal approach was performed by a senior surgeon. Clinical outcomes were evaluated using the visual analog pain score (VAS), Oswestry Disability Index (ODI), and modified MacNab criteria. The VAS and ODI scores significantly improved at the two-year follow-up. The global effects were excellent in six patients (28.6%), good in 13 (61.9%), and fair in two (9.5%). Therefore, all patients showed clinical improvement, with a success (excellent\/good) rate of 90.5%. No significant surgical complications or signs of further instability were observed. FELF can be used for foraminal stenosis in patients with stable spondylolisthesis. A specialized surgical technique is required for foraminal decompression of spondylolisthesis.<\/jats:p>","DOI":"10.3390\/diagnostics12123152","type":"journal-article","created":{"date-parts":[[2022,12,14]],"date-time":"2022-12-14T02:22:41Z","timestamp":1670984561000},"page":"3152","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Full-Endoscopic Lumbar Foraminotomy for Foraminal Stenosis in Spondylolisthesis: Two-Year Follow-Up Results"],"prefix":"10.3390","volume":"12","author":[{"given":"Do Yeon","family":"Rhee","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Gil Medical Center, Gachon University College of Medicine, Incheon 21565, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3262-1672","authenticated-orcid":false,"given":"Yong","family":"Ahn","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Gil Medical Center, Gachon University College of Medicine, Incheon 21565, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,12,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"E347","DOI":"10.1097\/BSD.0000000000000659","article-title":"Comparison of Decompression, Decompression Plus Fusion, and Decompression Plus Stabilization for Degenerative Spondylolisthesis: A Prospective, Randomized Study","volume":"31","author":"Inose","year":"2018","journal-title":"Clin. Spine Surg."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"526","DOI":"10.1056\/NEJMoa2100990","article-title":"Decompression with or without Fusion in Degenerative Lumbar Spondylolisthesis","volume":"385","author":"Austevoll","year":"2021","journal-title":"N. Engl. J. Med."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"101559","DOI":"10.1016\/j.eclinm.2022.101559","article-title":"Decompression alone or decompression and fusion in degenerative lumbar spondylolisthesis","volume":"51","author":"Wei","year":"2022","journal-title":"EClinicalMedicine"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"462","DOI":"10.3171\/jns.1996.84.3.0462","article-title":"Transforaminal arthroscopic decompression of lateral recess stenosis","volume":"84","author":"Kambin","year":"1996","journal-title":"J. Neurosurg."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"5","DOI":"10.1055\/s-2008-1052006","article-title":"Endoscopic laser foraminoplasty on the lumbar spine\u2014Early experience","volume":"41","author":"Knight","year":"1998","journal-title":"Minim. Invasive Neurosurg."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"722","DOI":"10.1097\/00007632-200204010-00009","article-title":"Posterolateral endoscopic excision for lumbar disc herniation: Surgical technique, outcome, and complications in 307 consecutive cases","volume":"27","author":"Yeung","year":"2002","journal-title":"Spine"},{"key":"ref_7","first-page":"320","article-title":"Posterolateral percutaneous endoscopic lumbar foraminotomy for L5-S1 foraminal or lateral exit zone stenosis. Technical note","volume":"99","author":"Ahn","year":"2003","journal-title":"J. Neurosurg."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"641","DOI":"10.1007\/s00064-005-1156-9","article-title":"Endoscopic transforaminal nucleotomy with foraminoplasty for lumbar disk herniation","volume":"17","author":"Schubert","year":"2005","journal-title":"Oper. Orthop. Traumatol."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"124","DOI":"10.1227\/NEU.0000000000000361","article-title":"Percutaneous endoscopic lumbar foraminotomy: An advanced surgical technique and clinical outcomes","volume":"75","author":"Ahn","year":"2014","journal-title":"Neurosurgery"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"229","DOI":"10.1016\/j.jos.2017.10.015","article-title":"State-of-the-art transforaminal percutaneous endoscopic lumbar surgery under local anesthesia: Discectomy, foraminoplasty, and ventral facetectomy","volume":"23","author":"Sairyo","year":"2018","journal-title":"J. Orthop. Sci."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"e101","DOI":"10.1016\/j.wneu.2020.12.176","article-title":"Effect of Dorsal Root Ganglion Retraction in Endoscopic Lumbar Decompressive Surgery for Foraminal Pathology: A Retrospective Cohort Study of Interlaminar Contralateral Endoscopic Lumbar Foraminotomy and Discectomy versus Transforaminal Endoscopic Lumbar Foraminotomy and Discectomy","volume":"148","author":"Kim","year":"2021","journal-title":"World Neurosurg."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"573","DOI":"10.1097\/01.BRS.0000050400.16499.ED","article-title":"Management of isthmic spondylolisthesis with posterolateral endoscopic foraminal decompression","volume":"28","author":"Knight","year":"2003","journal-title":"Spine"},{"key":"ref_13","first-page":"E703","article-title":"Transforaminal endoscopic discectomy with foraminoplasty for the treatment of spondylolisthesis","volume":"17","author":"Jasper","year":"2014","journal-title":"Pain Phys."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"408","DOI":"10.14444\/5048","article-title":"Transforaminal Endoscopic Decompression of the Lumbar Spine for Stable Isthmic Spondylolisthesis as the Least Invasive Surgical Treatment Using the YESS Surgery Technique","volume":"12","author":"Yeung","year":"2018","journal-title":"Int. J. Spine Surg."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"624","DOI":"10.14444\/5077","article-title":"Successful Endoscopic Surgery for L5 Radiculopathy Caused by Far-Lateral Disc Herniation at L5-S1 and L5 Isthmic Grade 2 Spondylolisthesis in a Professional Baseball Player","volume":"12","author":"Yamashita","year":"2018","journal-title":"Int. J. Spine Surg."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"e517","DOI":"10.1016\/j.wneu.2019.02.083","article-title":"Endoscopic Ventral Decompression for Spinal Stenosis with Degenerative Spondylolisthesis by Partially Removing Posterosuperior Margin Underneath the Slipping Vertebral Body: Technical Note and Outcome Evaluation","volume":"126","author":"Li","year":"2019","journal-title":"World Neurosurg."},{"key":"ref_17","first-page":"467","article-title":"Transforaminal Endoscopic Lumbar Decompression for Isthmic Spondylolisthesis: Technique Description and Clinical Outcome","volume":"36","author":"Liu","year":"2020","journal-title":"Surg. Technol. Int."},{"key":"ref_18","first-page":"E629","article-title":"Endoscopic Surgical Resection of the Retropulsed S1 Vertebral Endplate in L5-S1 Spondylolisthesis: Case Series","volume":"23","author":"Telfeian","year":"2020","journal-title":"Pain Phys."},{"key":"ref_19","first-page":"E1291","article-title":"Clinical Outcomes of Percutaneous Endoscopic Lumbar Discectomy for the Treatment of Grade I and Grade II Degenerative Lumbar Spondylolisthesis: A Retrospective Study With a Minimum Five-Year Follow-up","volume":"24","author":"Wu","year":"2021","journal-title":"Pain Phys."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"1095","DOI":"10.2214\/AJR.09.2772","article-title":"A practical MRI grading system for lumbar foraminal stenosis","volume":"194","author":"Lee","year":"2010","journal-title":"AJR. Am. J. Roentgenol."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"465","DOI":"10.3340\/jkns.2016.1010.004","article-title":"Correlation between MRI Grading System and Surgical Findings for Lumbar Foraminal Stenosis","volume":"60","author":"Jeong","year":"2017","journal-title":"J. Korean Neurosurg. Soc."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"605","DOI":"10.1586\/17434440.2014.940314","article-title":"Percutaneous endoscopic decompression for lumbar spinal stenosis","volume":"11","author":"Ahn","year":"2014","journal-title":"Expert Rev. Med. Devices"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"933","DOI":"10.1007\/s00701-022-05114-z","article-title":"Percutaneous endoscopic lumbar foraminotomy: How I do it","volume":"164","author":"Ahn","year":"2022","journal-title":"Acta. Neurochir."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"E6","DOI":"10.3171\/2013.5.FOCUS1377","article-title":"Short-term and long-term outcomes of minimally invasive and open transforaminal lumbar interbody fusions: Is there a difference?","volume":"35","author":"Cheng","year":"2013","journal-title":"Neurosurg. Focus"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1017","DOI":"10.1007\/s00586-015-3903-4","article-title":"Minimally invasive versus open transforaminal lumbar interbody fusion for treatment of degenerative lumbar disease: Systematic review and meta-analysis","volume":"24","author":"Phan","year":"2015","journal-title":"Eur. Spine J."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"185","DOI":"10.4184\/asj.2015.9.2.185","article-title":"Open and minimally invasive transforaminal lumbar interbody fusion: Comparison of intermediate results and complications","volume":"9","author":"Hey","year":"2015","journal-title":"Asian Spine J."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"124","DOI":"10.5435\/JAAOS-D-15-00756","article-title":"Transforaminal Lumbar Interbody Fusion: Traditional Open Versus Minimally Invasive Techniques","volume":"26","author":"Lee","year":"2018","journal-title":"J. Am. Acad. Orthop. Surg."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"319","DOI":"10.1155\/2013\/742468","article-title":"What constitutes a clinically important pain reduction in patients after third molar surgery?","volume":"18","author":"Martin","year":"2013","journal-title":"Pain Res. Manag."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"199","DOI":"10.1007\/s00586-006-0078-z","article-title":"The effect of duration of symptoms on standard outcome measures in the surgical treatment of spinal stenosis","volume":"16","author":"Ng","year":"2007","journal-title":"Eur. Spine J."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"90","DOI":"10.1097\/BRS.0b013e31815e3a10","article-title":"Interpreting change scores for pain and functional status in low back pain: Towards international consensus regarding minimal important change","volume":"33","author":"Ostelo","year":"2008","journal-title":"Spine"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"1312","DOI":"10.1097\/00007632-199111000-00012","article-title":"Diagnosis and operative treatment of intraforaminal and extraforaminal nerve root compression","volume":"16","author":"Kunogi","year":"1991","journal-title":"Spine"},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"1263","DOI":"10.1097\/00007632-199308000-00003","article-title":"Surgical treatment for the far lateral herniated lumbar disc","volume":"18","author":"Donaldson","year":"1993","journal-title":"Spine"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"1905","DOI":"10.1097\/00007632-199409000-00007","article-title":"Foraminal lumbar disc herniation. Experience with 83 patients","volume":"19","author":"Lejeune","year":"1994","journal-title":"Spine"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"1500","DOI":"10.1097\/00007632-199507000-00011","article-title":"Far lateral disc herniations treated by microscopic fragment excision. Techniques and results","volume":"20","author":"Darden","year":"1995","journal-title":"Spine"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"644","DOI":"10.1038\/sc.1996.116","article-title":"Microsurgical nerve root canal widening without fusion for lumbosacral intervertebral foraminal stenosis: Technical notes and early results","volume":"34","author":"Baba","year":"1996","journal-title":"Spinal Cord."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"1243","DOI":"10.1097\/00007632-199906150-00012","article-title":"The surgical treatment of far lateral L3-L4 and L4-L5 disc herniations. A modified technique and outcomes analysis of 25 patients","volume":"24","author":"Hodges","year":"1999","journal-title":"Spine"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"302","DOI":"10.1097\/BSD.0b013e3181f7cc9f","article-title":"Microsurgical posterolateral transmuscular approach for lumbar foraminal stenosis","volume":"24","author":"Chang","year":"2011","journal-title":"J. Spinal Disord. Tech."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"73","DOI":"10.1089\/104454701750285395","article-title":"Endoscopic foraminoplasty: A prospective study on 250 consecutive patients with independent evaluation","volume":"19","author":"Knight","year":"2001","journal-title":"J. Clin. Laser Med. Surg."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"22","DOI":"10.14444\/1022","article-title":"Endoscopic foraminal decompression for failed back surgery syndrome under local anesthesia","volume":"8","author":"Yeung","year":"2014","journal-title":"Int. J. Spine Surg."}],"container-title":["Diagnostics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2075-4418\/12\/12\/3152\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:40:46Z","timestamp":1760146846000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2075-4418\/12\/12\/3152"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,12,13]]},"references-count":39,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2022,12]]}},"alternative-id":["diagnostics12123152"],"URL":"https:\/\/doi.org\/10.3390\/diagnostics12123152","relation":{},"ISSN":["2075-4418"],"issn-type":[{"value":"2075-4418","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,12,13]]}}}