Blar i forfatter "Werner, David Andreas Thomas"

Viser treff 1-4 av 4

    • Can a Successful Outcome After Surgery for Lumbar Disc Herniation Be Defined by the Oswestry Disability Index Raw Score? 

      Werner, David Andreas Thomas; Grotle, Margreth; Gulati, Sasha; Austevoll, Ivar Magne; Madsbu, Mattis Aleksander; Lønne, Greger; Solberg, Tore (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-06)
      <i>Study Design</i>: Prospective multicenter cohort study.<p><p> <i>Objective</i>: To investigate (1) the discriminative ability and cutoff estimates for success 12 months after surgery for lumbar disc herniation on the Oswestry Disability Index (ODI) raw score compared with a change and a percentage change score and (2) to what extent these clinical outcomes depend on the baseline disability.< ...

    • Criteria for failure and worsening after surgery for lumbar disc herniation: a multicenter observational study based on data from the Norwegian Registry for Spine Surgery 

      Werner, David Andreas Thomas; Grotle, Margreth; Gulati, Sasha; Austevoll, Ivar M.; Lønne, Greger; Nygaard, Øystein P.; Solberg, Tore K. (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06-14)
      PURPOSE: In clinical decision-making, it is crucial to discuss the probability of adverse outcomes with the patient. A large proportion of the outcomes are difficult to classify as either failure or success. Consequently, cutoff values in patient-reported outcome measures (PROMs) for "failure" and "worsening" are likely to be different from those of "non-success". The aim of this study was to identify ...

    • Development of a prognostic model for unfavorable outcome after lumbar microdiscectomy 

      Werner, David Andreas Thomas (Doctoral thesis; Doktorgradsavhandling, 2021-05-11)
      The aim of this thesis was to develop a prognostic model for unfavorable outcome 12 months after surgical treatment of a lumbar disc herniation (lumbar microdiscectomy). While the surgical procedure is rather uniform, with little technical variation, the reported outcomes are quite heterogenous. This might be due to different expectations by patients, or due to suboptimal surgical indication as ...

    • A prognostic model for failure and worsening after lumbar microdiscectomy: a multicenter study from the Norwegian Registry for Spine Surgery 

      Werner, David Andreas Thomas; Grotle, Margreth; Småstuen, Milada Cvancarova; Gulati, Sasha; Nygaard, Øystein Petter; Salvesen, Øyvind; Ingebrigtsen, Tor; Solberg, Tore (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-10)
      <i>Objective</i> - To develop a prognostic model for failure and worsening 1 year after surgery for lumbar disc herniation.<br><br> <i>Methods</i> - This multicenter cohort study included 11,081 patients operated with lumbar microdiscectomy, registered at the Norwegian Registry for Spine Surgery. Follow-up was 1 year. Uni- and multivariate logistic regression analyses were used to assess potential ...