{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T08:10:02Z","timestamp":1780387802733,"version":"3.54.1"},"reference-count":33,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T00:00:00Z","timestamp":1778198400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T00:00:00Z","timestamp":1778198400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Surgery"],"published-print":{"date-parts":[[2026,6]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>In radiographically stable adult degenerative scoliosis (ADS), unilateral biportal endoscopic (UBE) decompression alone is effective in alleviating symptoms; however, executing adequate decompression without excessive facetectomy in rotated, tortuous anatomy remains challenging. Intraoperative O\u2010arm navigation has the potential to enhance procedural accuracy of UBE decompression. This study compared the clinical outcomes and radiological parameters between O\u2010arm navigation\u2013assisted and conventional fluoroscopy\u2010guided UBE decompression alone in stable ADS.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      This single\u2010center retrospective study included 63 patients with radiographically stable ADS who underwent UBE decompression alone between 2021 and 2023 (navigation, NAV:\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200934; non\u2010navigation, NON\u2010NAV:\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200929). This study presents details about patients' demographics, perioperative parameters, and up to 24\u2009months follow\u2010up outcomes. Primary endpoint was the facet preservation rate (FPR) at 1\u2010month post\u2010operation, quantified by CT\u2010based 3D volumetry. Secondary endpoints included DCSA, lateral recess height\/angle, dynamic angulation\/slip, patient\u2010reported outcomes (VAS\/ODI), and complications. Data were analyzed using independent t\u2010tests, Wilcoxon rank\u2010sum tests, and repeated\u2010measures ANOVA as appropriate.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Operative time and length of stay were slightly shorter in NAV but not statistically different; estimated blood loss was comparable. NAV and NON\u2010NAV groups showed significant improvements in VAS of leg\/back pain and ODI at 1\u2009month and last follow\u2010up, without between\u2010group differences. DCSA increased substantially in both groups (~200%\u2013250%); but dispersion was smaller in NAV, indicating more uniform decompression. Structural preservation favored NAV (higher residual lamina\u2010facet volumes). Segmentally, NON\u2010NAV exhibited greater increases in dynamic angulation (8.5\u00b0\u2009\u00b1\u20091.2\u00b0 vs. 6.2\u00b0\u2009\u00b1\u20091.4\u00b0,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001) and early slip (2.8\u2009\u00b1\u20090.8 vs. 1.8\u2009\u00b1\u20090.8\u2009mm,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001), although radiographic instability thresholds were not exceeded. Global sagittal and coronal parameters were largely comparable between groups over time.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>In stable ADS, O\u2010arm navigation for UBE decompression did not prolong operative time nor increase blood loss, and yielded tighter boundary control of decompression, higher facet preservation, and smaller segmental perturbations, while maintaining equivalent symptomatic improvement. The value of O\u2010arm navigation lies in enabling precise and sufficient decompression while limiting medial facetectomy within stability\u2010preserving margins.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/os.70315","type":"journal-article","created":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T14:03:04Z","timestamp":1778248984000},"page":"1203-1215","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["O\u2010Arm Navigation Enhances Facet Preservation Without Compromising Clinical Outcomes in\n                    <scp>UBE<\/scp>\n                    Decompression for Radiographically Stable Adult Degenerative Scoliosis: A Single\u2010Center Comparative Study"],"prefix":"10.1111","volume":"18","author":[{"given":"Yi","family":"Liu","sequence":"first","affiliation":[{"name":"Department of Orthopedics, Tongren Hospital Shanghai Jiao Tong University School of Medicine  Shanghai 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Medicine  Shanghai China"},{"name":"Center for Spinal Minimally Invasive Research Shanghai Jiao Tong University  Shanghai China"},{"name":"Shanghai Key Laboratory of Flexible Medical Robotics, Tongren Hospital, Institute of Medical Robotics Shanghai Jiao Tong University  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruijun","family":"Xu","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Tongren Hospital Shanghai Jiao Tong University School of Medicine  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haojie","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Tongren Hospital Shanghai Jiao Tong University School of Medicine  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaojian","family":"Ye","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Tongren Hospital Shanghai Jiao Tong University School of Medicine  Shanghai China"},{"name":"Center for Spinal Minimally Invasive Research Shanghai Jiao Tong University  Shanghai China"},{"name":"Shanghai Key Laboratory of Flexible Medical Robotics, Tongren Hospital, Institute of Medical Robotics Shanghai Jiao Tong University  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiangming","family":"Yu","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Tongren Hospital Shanghai Jiao Tong University School of Medicine  Shanghai China"},{"name":"Center for Spinal Minimally Invasive Research Shanghai Jiao Tong University  Shanghai China"},{"name":"Shanghai Key Laboratory of Flexible Medical Robotics, Tongren Hospital, Institute of Medical Robotics Shanghai Jiao Tong University  Shanghai 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