Browsing NTNU Open by Author "Austevoll, Ivar Magne"
Now showing items 1-18 of 18
-
The association between preoperative MRI findings and clinical improvement in patients included in the NORDSTEN spinal stenosis trial
Aaen, Jørn Ståle; Banitalebi, Hasan; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Myklebust, Tor Åge; Anvar, Masoud D; Weber, Clemens; Solberg, Tore; Grundnes, Oliver; Brisby, Helena; Indrekvam, Kari; Hermansen, Erland (Journal article; Peer reviewed, 2022)Purpose To investigate potential associations between preoperative MRI findings and patient reported outcome measures (PROMs) after surgery for lumbar spinal stenosis (LSS). Methods The NORDSTEN trial included 437 ... -
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; Peer reviewed, 2019)Study Design: Prospective multicenter cohort study. Objective: To investigate (1) the discriminative ability and cutoff estimates for success 12 months after surgery for lumbar disc herniation on the Oswestry Disability ... -
Clinical and MRI findings in lumbar spinal stenosis: baseline data from the NORDSTEN study
Aaen, Jørn; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Myklebust, Tor Åge; Banitalebi, Hasan; Anvar, Masoud; Brox, Jens Ivar; Weber, Clemens; Solberg, Tore; Grundnes, Oliver; Brisby, Helena; Indrekvam, Kari; Hermansen, Erland (Peer reviewed; Journal article, 2021)Purpose The aim was to describe magnetic resonance imaging findings in patients planned for lumbar spinal stenosis surgery. Further, to describe possible associations between MRI findings and patient characteristics with ... -
Comparable Increases in Dural Sac Area After Three Different Posterior Decompression Techniques for Lumbar Spinal Stenosis: Radiological Results From a Randomized Controlled Trial in the NORDSTEN Study
Hermansen, Erland; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Myklebust, Tor Åge; Aaen, Jørn Ståle; Banitalebi, Hasan; Anvar, Masoud; Rekeland, Frode; Brox, Jens Ivar; Franssen, Eric; Weber, Clemens; Solberg, Tore; Haug, Knut Jørgen; Grundnes, Oliver; Brisby, Helena; Indrekvam, Kari (Peer reviewed; Journal article, 2020)Purpose: To investigate changes in dural sac area after three different posterior decompression techniques in patients undergoing surgery for lumbar spinal stenosis. Decompression of the nerve roots is the main surgical ... -
Comparable increases in dural sac area after three different posterior decompression techniques for lumbar spinal stenosis: radiological results from a randomized controlled trial in the NORDSTEN study
Hermansen, Erland; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Myklebust, Tor Åge; Aaen, Jørn Ståle; Banitalebi, Hasan; Anvar, Masoud D; Rekeland, Frode; Brox, Jens Ivar; Franssen, Eric; Weber, Clemens; Solberg, Tore; Haug, Knut Jørgen; Grundnes, Oliver; Brisby, Helena; Indrekvam, Kari (Peer reviewed; Journal article, 2020)Purpose: To investigate changes in dural sac area after three different posterior decompression techniques in patients undergoing surgery for lumbar spinal stenosis. Summary of background data: Decompression of the nerve ... -
Comparison of 3 Different Minimally Invasive Surgical Techniques for Lumbar Spinal Stenosis: A Randomized Clinical Trial
Hermansen, Erland; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Myklebust, Tor Åge; Aaen, Jørn Ståle; Banitalebi, Hasan; Anvar, Masoud D; Rekeland, Frode; Brox, Jens Ivar; Franssen, Eric; Weber, Clemens; Solberg, Tore; Furunes, Håvard; Grundnes, Oliver; Brisby, Helena; Indrekvam, Kari (Peer reviewed; Journal article, 2022)Importance Operations for lumbar spinal stenosis is the most often performed surgical procedure in the adult lumbar spine. This study reports the clinical outcome of the 3 most commonly used minimally invasive posterior ... -
Do patients with lumbar spinal stenosis benefit from decompression of levels with adjacent moderate stenosis? A prospective cohort study from the NORDSTEN study
Tronstad, Sara; Haug, Knut Jørgen; Myklebust, Tor Åge; Weber, Clemens; Brisby, Helena; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Aaen, Jørn Ståle; Banitalebi, Hasan; Brox, Jens Ivar; Grundnes, Oliver; Franssen, Eric; Indrekvam, Kari; Solberg, Tore; Hermansen, Erland (Journal article; Peer reviewed, 2024)Background: Lumbar spinal stenosis (LSS) is characterized by pain that radiates to the buttocks and/or legs, aggravated by walking and relieved by forward flexion. There is poor correlation between clinical symptoms and ... -
Impact of the number of previous lumbar operations on patient-reported outcomes after surgery for lumbar spinal stenosis or lumbar disc herniation
Riksaasen, Anniken S.; Kaur, Simran; Solberg, Tore; Austevoll, Ivar Magne; Brox, Jens Ivar; Dolatowski, Filip Celestyn; Hellum, Christian; Kolstad, Frode; Lønne, Greger; Nygaard, Øystein Petter; Ingebrigtsen, Tor (Peer reviewed; Journal article, 2023)Aims 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. Methods This ... -
Incidental dural tears associated with worse clinical outcomes in patients operated for lumbar spinal stenosis
Alhaug, Ole Kristian; Dolatowski, Filip Celestyn; Austevoll, Ivar Magne; Mjønes, Sverre Markussen; Lønne, Greger (Peer reviewed; Journal article, 2022)Study design: Retrospective cohort study. Objective: Incidental dural (ID) tear is a common complication of spine surgery with a prevalence of 4-10%. The association between ID and clinical outcome is uncertain. Former ... -
Is the presence of foraminal stenosis associated with outcome in lumbar spinal stenosis patients treated with posterior microsurgical decompression
Aaen, Jørn Ståle; BANITALEBI, HASAN; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Myklebust, Tor Åge; Anvar, Masoud D; Weber, Clemens; Solberg, Tore; Grundnes, Oliver; Brisby, Helena; Indrekvam, Kari; Hermansen, Erland (Peer reviewed; Journal article, 2023)Background We aim to investigate associations between preoperative radiological findings of lumbar foraminal stenosis with clinical outcomes after posterior microsurgical decompression in patients with predominantly ... -
Long-term comparison of anterior (ALIF) versus transforaminal (TLIF) lumbar interbody fusion: a propensity score-matched register-based study
Alhaug, Ole Kristian; Dolatowski, Filip Celestyn; Thyrhaug, Anette Moltu; Mjønes, Sverre Markussen; Roque Dos Reis, Joao André Barroso Pereira; Austevoll, Ivar Magne (Peer reviewed; Journal article, 2023)Purpose Anterior (ALIF) and transforaminal (TLIF) lumbar interbody fusion have shown similar clinical outcomes at short- and medium-term follow-ups. Possible advantages of ALIF in the long run could be better disc height ... -
The Norwegian registry for spine surgery (NORspine): cohort profile
Mikkelsen, Eirik; Ingebrigtsen, Tor; Thyrhaug, Anette Moltu; Olsen, Lena Ringstad; Nygaard, Øystein Petter; Austevoll, Ivar Magne; Brox, Jens Ivar; Hellum, Christian; Kolstad, Frode; Lønne, Greger; Solberg, Tore (Peer reviewed; Journal article, 2023)Purpose To review and describe the development, methods and cohort of the lumbosacral part of the Norwegian registry for spine surgery (NORspine). Methods NORspine was established in 2007. It is government funded, ... -
Postoperative Dural Sac Cross-Sectional Area as an Association for Outcome After Surgery for Lumbar Spinal Stenosis: Clinical and Radiological Results From the NORDSTEN-Spinal Stenosis Trial
Hermansen, Erland; Myklebust, Tor Åge; Weber, Clemens; Brisby, Helena; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Aaen, Jørn Ståle; BANITALEBI, HASAN; Brox, Jens Ivar; Grundnes, Oliver; Rekeland, Frode Gurvin; Solberg, Tore; Franssen, Eric; Indrekvam, Kari (Peer reviewed; Journal article, 2023)Study Design. Prospective cohort study. Objective. The aim was to investigate the association between postoperative dural sac cross-sectional area (DSCA) after decompressive surgery for lumbar spinal stenosis and ... -
A randomized trial on three different minimally invasive decompression techniques for lumbar spinal stenosis. Five years follow-up from the NORDSTEN-SST
Hermansen, Erland; Indrekvam, Kari; Franssen, Eric; Myklebust, Tor Åge; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Bånerud, Ingrid Fjeldheim; Ebbs, Eira Kathleen; Aaen, Jørn Ståle; BANITALEBI, HASAN; Brox, Jens Ivar; Weber, Clemens; Solberg, Tore; Hjulstad, Arild; Brisby, Helena (Journal article; Peer reviewed, 2024)Purpose: The short-term clinical outcome for midline-preserving posterior decompression techniques was comparable. The aim of this study was to evaluate long-term clinical results after three different midline-preserving ... -
Reliability of preoperative MRI findings in patients with lumbar spinal stenosis
Banitalebi, Hasan; Espeland, Ansgar; Anvar, Masoud D; Hermansen, Erland; Hellum, Christian; Brox, Jens Ivar; Myklebust, Tor Åge; Indrekvam, Kari; Brisby, Helena; Weber, Clemens; Aaen, Jørn Ståle; Austevoll, Ivar Magne; Grundnes, Oliver; Negård, Anne (Peer reviewed; Journal article, 2022)Background Magnetic Resonance Imaging (MRI) is an important tool in preoperative evaluation of patients with lumbar spinal stenosis (LSS). Reported reliability of various MRI findings in LSS varies from fair to excellent. ... -
Responsiveness of the Oswestry Disability Index and Zurich Claudication Questionnaire in patients with lumbar spinal stenosis: evaluation of surgically treated patients from the NORDSTEN study
Indrekvam, Kari; Myklebust, Tor Åge; Austevoll, Ivar Magne; Hermansen, Erland; BANITALEBI, HASAN; Bånerud, Ingrid Fjeldheim; Weber, Clemens; Brisby, Helena; Brox, Jens Ivar; Hellum, Christian; Storheim, Kjersti (Journal article; Peer reviewed, 2024)Purpose: To evaluate the responsiveness of the original low back pain specific Oswestry Disability Index (ODI) and the spinal stenosis specific Zürich Claudication Questionnaire (ZCQ), and to investigate cut-off values for ... -
Risk factors for surgical site infections among 1,772 patients operated on for lumbar disc herniation: a multicentre observational registry-based study
Habiba, Samer; Nygaard, Øystein Petter; Brox, Jens Ivar; Hellum, Christian; Austevoll, Ivar Magne; Solberg, Tore (Journal article; Peer reviewed, 2017)Background There are no previous studies evaluating risk factors for surgical site infections (SSIs) and the effectiveness of prophylactic antibiotic treatment (PAT), specifically for patients operated on for lumbar disc ... -
Surgery in Degenerative Spondylolisthesis: Does fusion improve outcome in subgroups? A secondary analysis from a randomized trial (NORDSTEN trial)
Hellum, Christian; Rekeland, Frode Gurvin; Småstuen, Milada Cvancarova; Solberg, Tore; Hermansen, Erland; Storheim, Kjersti; Brox, Jens Ivar; Furunes, Håvard; Franssen, Eric; Weber, Clemens; Brisby, Helena; Grundnes, Oliver; Robert Hector Algaard, Knut; Bøker, Tordis; Banitalebi, Hasan; Indrekvam, Kari; Austevoll, Ivar Magne (Peer reviewed; Journal article, 2023)BACKGROUND CONTEXT: Patients with spinal stenosis and degenerative spondylolisthesis are treated surgically with decompression alone or decompression with fusion. However, there is debate regarding which subgroups of ...