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dc.contributor.authorRiksaasen, Anniken S.
dc.contributor.authorKaur, Simran
dc.contributor.authorSolberg, Tore
dc.contributor.authorAustevoll, Ivar Magne
dc.contributor.authorBrox, Jens Ivar
dc.contributor.authorDolatowski, Filip Celestyn
dc.contributor.authorHellum, Christian
dc.contributor.authorKolstad, Frode
dc.contributor.authorLønne, Greger
dc.contributor.authorNygaard, Øystein Petter
dc.contributor.authorIngebrigtsen, Tor
dc.date.accessioned2023-08-29T10:59:22Z
dc.date.available2023-08-29T10:59:22Z
dc.date.issued2023-03-15
dc.description.abstractAims - Repeated lumbar spine surgery has been associated with inferior clinical outcomes. This study aimed to examine and quantify the impact of this association in a national clinical register cohort.<p> <p>Methods - This is a population-based study from the Norwegian Registry for Spine surgery (NORspine). We included 26,723 consecutive cases operated for lumbar spinal stenosis or lumbar disc herniation from January 2007 to December 2018. The primary outcome was the Oswestry Disability Index (ODI), presented as the proportions reaching a patient-acceptable symptom state (PASS; defined as an ODI raw score ≤ 22) and ODI raw and change scores at 12-month follow-up. Secondary outcomes were the Global Perceived Effect scale, the numerical rating scale for pain, the EuroQoL five-dimensions health questionnaire, occurrence of perioperative complications and wound infections, and working capability. Binary logistic regression analysis was conducted to examine how the number of previous operations influenced the odds of not reaching a PASS.<p> <p>Results - The proportion reaching a PASS decreased from 66.0% (95% confidence interval (CI) 65.4 to 66.7) in cases with no previous operation to 22.0% (95% CI 15.2 to 30.3) in cases with four or more previous operations (p < 0.001). The odds of not reaching a PASS were 2.1 (95% CI 1.9 to 2.2) in cases with one previous operation, 2.6 (95% CI 2.3 to 3.0) in cases with two, 4.4 (95% CI 3.4 to 5.5) in cases with three, and 6.9 (95% CI 4.5 to 10.5) in cases with four or more previous operations. The ODI raw and change scores and the secondary outcomes showed similar trends.<p> <p>Conclusion - We found a dose-response relationship between increasing number of previous operations and inferior outcomes among patients operated for degenerative conditions in the lumbar spine. This information should be considered in the shared decision-making process prior to elective spine surgery.en_US
dc.identifier.citationRiksaasen, Kaur, Solberg, Austevoll, Brox, Dolatowski, Hellum, Kolstad, Lønne, Nygaard, Ingebrigtsen. Impact of the number of previous lumbar operations on patient-reported outcomes after surgery for lumbar spinal stenosis or lumbar disc herniation. The Bone & Joint Journal. 2023;105-B(4):422-430
dc.identifier.cristinIDFRIDAID 2139967
dc.identifier.doi10.1302/0301-620X.105B4.BJJ-2022-0704.R1
dc.identifier.issn2049-4394
dc.identifier.issn2049-4408
dc.identifier.urihttps://hdl.handle.net/10037/30509
dc.language.isoengen_US
dc.publisherBritish Editorial Society of Bone and Joint Surgeryen_US
dc.relation.journalThe Bone & Joint Journal
dc.rights.holderCopyright 2023 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0en_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)en_US
dc.titleImpact of the number of previous lumbar operations on patient-reported outcomes after surgery for lumbar spinal stenosis or lumbar disc herniationen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)