{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T04:57:41Z","timestamp":1780549061765,"version":"3.54.1"},"reference-count":38,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,3,30]],"date-time":"2026-03-30T00:00:00Z","timestamp":1774828800000},"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>Purpose<\/jats:title>\n                    <jats:p>This study aims to evaluate the clinical outcomes of unilateral biportal endoscopic transforaminal lumbar interbody fusion (ULIF) and oblique lumbar interbody fusion with posterior percutaneous screw fixation (OLIF-PF) in the treatment of lumbar spinal canal stenosis (LSCS).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Data from December 2019 to January 2022 were analyzed. 54 patients in the ULIF group and 42 patients in the OLIF-PF group completed a minimum of 1 year follow-up. The demographic data, clinical indicators, laboratory indicators, radiological results, and complications were assessed and compared between the two groups.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      There was no significant difference in the preoperative baseline between the two groups. The ULIF group experienced shorter operation time and more blood loss compared with the OLIF-PF group (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&amp;lt;\u20090.05). The VAS for back pain and ODI score at 1 day postoperatively were lower in the OLIF-PF group than in the ULIF group. At the last follow-up, the VAS for back pain was lower in the ULIF group than in the OLIF-PF group (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&amp;lt;\u20090.05). However, the VAS for leg pain was lower in the ULIF group than in the OLIF-PF group at 1 day postoperatively, and there were no significant differences at other follow-up times (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&amp;lt;\u20090.05). There was no significant difference between the two groups in the modified MacNab score at last follow-up (90.74% vs. 90.48%,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&amp;gt;\u20090.05). And there was no significant difference between the two groups in CPR and ESR (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&amp;gt;\u20090.05). The improvements of DH, LL, and SA were superior in the OLIF-PF group than in the ULIF group at 3 days postoperatively and maintained to the last follow-up (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&amp;lt;\u20090.05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Both ULIF and OLIF-PF showed favorable mid-term outcomes in the treatment of LSCS. Both surgical methods significantly improved pain symptoms and lumbar sagittal balance. Long-term follow-up and larger clinical studies are needed to confirm this result.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fsurg.2026.1789093","type":"journal-article","created":{"date-parts":[[2026,3,30]],"date-time":"2026-03-30T05:26:47Z","timestamp":1774848407000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Comparison of clinical outcomes between unilateral biportal endoscopic transforaminal lumbar interbody fusion and oblique lumbar interbody fusion with posterior percutaneous screw fixation in patients with lumbar spinal canal stenosis"],"prefix":"10.3389","volume":"13","author":[{"given":"Ye-Hui","family":"Wang","sequence":"first","affiliation":[{"name":"Department of Spine and Neurosurgery, Sichuan Province Orthopedic Hospital","place":["Chengdu, Sichuan, 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