{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T15:52:17Z","timestamp":1789141937257,"version":"build-2803163510"},"reference-count":20,"publisher":"Asian Spine Journal (ASJ)","issue":"5","license":[{"start":{"date-parts":[[2024,10,22]],"date-time":"2024-10-22T00:00:00Z","timestamp":1729555200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["asianspinejournal.org"],"crossmark-restriction":true},"short-container-title":["Asian Spine J"],"published-print":{"date-parts":[[2024,10,31]]},"abstract":"<jats:p>This retrospective case series evaluated the effectiveness of minimally invasive spine surgery-transforaminal lumbar interbody fusion (MIS-TLIF) using the \u201ctrial-in-situ \u201d technique for reducing high-grade spondylolisthesis. The surgical management of grade \u2265III spondylolisthesis has been controversial, with various methods documented in the literature, including in-situ fusion, in-situ trans-sacral delta fixation, distraction techniques, and external reduction techniques. Recently, MIS techniques have gained popularity. This study analyzed 18 cases of high-grade spondylolisthesis treated with MIS-TLIF using the \u201ctrial-in-situ \u201d technique. The clinical outcomes were assessed using the Visual Analog Scale (VAS) and the modified Oswestry Disability Index (mODI) scores. The spinopelvic parameters and sagittal balance were also analyzed. Preoperatively, the spinopelvic parameters were deranged, with a mean pelvic tilt of 28.31\u00b0, which improved to 13.91\u00b0 postoperatively. Similarly, the sacral slope improved from 45.65\u00b0 to 38.01\u00b0. VAS and mODI scores improved postoperatively, indicating the effectiveness of the \u201ctrial-in-situ \u201d technique in reducing high-grade spondylolisthesis and achieving a better sagittal profile and spinopelvic parameters. The findings indicate that MIS-TLIF using the \u201ctrial-in-situ \u201d technique is a viable and effective method for treating high-grade spondylolisthesis.<\/jats:p>","DOI":"10.31616\/asj.2024.0224","type":"journal-article","created":{"date-parts":[[2024,10,22]],"date-time":"2024-10-22T04:12:39Z","timestamp":1729570359000},"page":"712-718","update-policy":"https:\/\/doi.org\/10.31616\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Reduction of high-grade spondylolisthesis using minimally invasive spine surgery-transforaminal lumbar interbody fusion \u201ctrial-in-situ\u201d technique: a technical note with case 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