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What Affects Segmental Lordosis of the Surgical Site after Minimally Invasive Transforaminal Lumbar Interbody Fusion?

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dc.contributor.author박정윤-
dc.contributor.author김수헌-
dc.date.accessioned2022-12-22T02:53:58Z-
dc.date.available2022-12-22T02:53:58Z-
dc.date.issued2022-07-
dc.identifier.issn0513-5796-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/191729-
dc.description.abstractPurpose: This study was undertaken to identify factors that affect segmental lordosis (SL) after minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) by comparing patients whose postoperative SL increased with those whose decreased. Materials and methods: Fifty-five patients underwent MIS-TLIF at our institute from January 2018 to September 2019. Demographic, pre- and postoperative radiologic, and cage-related factors were included. Statistical analyses were designed to compare patients whose SL increased with decreased after surgery. Results: After surgery, SL increased in 34 patients (group I) and decreased in 21 patients (group D). The index level, disc lordosis, SL, lumbar lordosis, proximal lordosis (PL), and Y-axis position of the cage (Yc) differed significantly between groups I and D. The cage in group I was more anterior than that in group D (Yc: 55.84% vs. 51.24%). Multivariate analysis showed that SL decreased more significantly after MIS-TLIF when the index level was L3/4 rather than L4/5 [odds ratio (OR): 0.46, p=0.019], as preoperative SL (OR: 0.82, p=0.037) or PL (OR: 0.68, p=0.028) increased, and as the cage became more posterior (OR: 1.10, p=0.032). Conclusion: Changes in SL after MIS-TLIF appear to be associated with preoperative SL and PL, index level, and Yc. An index level at L4/5 instead of L3/4, smaller preoperative SL or PL, and an anterior position of the cage are likely to result in increased SL after MIS-TLIF. Materials and methods: Fifty-five patients underwent MIS-TLIF at our institute from January 2018 to September 2019. Demographic, pre- and postoperative radiologic, and cage-related factors were included. Statistical analyses were designed to compare patients whose SL increased with decreased after surgery. Results: After surgery, SL increased in 34 patients (group I) and decreased in 21 patients (group D). The index level, disc lordosis, SL, lumbar lordosis, proximal lordosis (PL), and Y-axis position of the cage (Yc) differed significantly between groups I and D. The cage in group I was more anterior than that in group D (Yc: 55.84% vs. 51.24%). Multivariate analysis showed that SL decreased more significantly after MIS-TLIF when the index level was L3/4 rather than L4/5 [odds ratio (OR): 0.46, p=0.019], as preoperative SL (OR: 0.82, p=0.037) or PL (OR: 0.68, p=0.028) increased, and as the cage became more posterior (OR: 1.10, p=0.032). Conclusion: Changes in SL after MIS-TLIF appear to be associated with preoperative SL and PL, index level, and Yc. An index level at L4/5 instead of L3/4, smaller preoperative SL or PL, and an anterior position of the cage are likely to result in increased SL after MIS-TLIF.-
dc.description.statementOfResponsibilityopen-
dc.formatapplication/pdf-
dc.languageEnglish-
dc.publisherYonsei University-
dc.relation.isPartOfYONSEI MEDICAL JOURNAL-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.subject.MESHHumans-
dc.subject.MESHLordosis* / diagnostic imaging-
dc.subject.MESHLordosis* / surgery-
dc.subject.MESHLumbar Vertebrae / diagnostic imaging-
dc.subject.MESHLumbar Vertebrae / surgery-
dc.subject.MESHMinimally Invasive Surgical Procedures / adverse effects-
dc.subject.MESHRetrospective Studies-
dc.subject.MESHSpinal Fusion* / adverse effects-
dc.subject.MESHTreatment Outcome-
dc.titleWhat Affects Segmental Lordosis of the Surgical Site after Minimally Invasive Transforaminal Lumbar Interbody Fusion?-
dc.typeArticle-
dc.contributor.collegeCollege of Medicine (의과대학)-
dc.contributor.departmentDept. of Neurosurgery (신경외과학교실)-
dc.contributor.googleauthorSoo-Heon Kim-
dc.contributor.googleauthorBang Sang Hahn-
dc.contributor.googleauthorJeong-Yoon Park-
dc.identifier.doi10.3349/ymj.2022.63.7.665-
dc.contributor.localIdA01650-
dc.relation.journalcodeJ02813-
dc.identifier.eissn1976-2437-
dc.identifier.pmid35748078-
dc.subject.keywordMinimally invasive-
dc.subject.keywordcage-
dc.subject.keywordlumbar lordosis-
dc.subject.keywordoutcome-
dc.subject.keywordsegmental lordosis-
dc.subject.keywordspine surgery-
dc.subject.keywordtransforaminal lumbar interbody fusion-
dc.contributor.alternativeNamePark, Jeong Yoon-
dc.contributor.affiliatedAuthor박정윤-
dc.citation.volume63-
dc.citation.number7-
dc.citation.startPage665-
dc.citation.endPage674-
dc.identifier.bibliographicCitationYONSEI MEDICAL JOURNAL, Vol.63(7) : 665-674, 2022-07-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers

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