2023

• Hara, Sozaburo; Andresen, Hege; Solheim, Ole Skeidsvoll; Carlsen, Sven Magnus; Jakola, Asgeir Store; Salvesen, Øyvind Olav. (2023) Six-Month Follow-up of a Trial of Spinal Cord Burst Stimulation vs Placebo Stimulation and Disability in Patients With Chronic Radicular Pain After Lumbar Spine Surgery. Journal of the American Medical Association (JAMA)
  Academic article
• Johansen, Tonje Okkenhaug; Holmberg, Siril Therese; Danielsen, Elisabet; Rao, Vidar; Salvesen, Øyvind Olav; Andresen, Hege. (2023) Long-Term Results After Surgery for Degenerative Cervical Myelopathy. Neurosurgery
  Academic article

2022

• Hara, Sozaburo; Andresen, Hege; Solheim, Ole; Carlsen, Sven Magnus; Sundstrøm, Terje; Lønne, Greger. (2022) Effect of Spinal Cord Burst Stimulation vs Placebo Stimulation on Disability in Patients With Chronic Radicular Pain After Lumbar Spine Surgery: A Randomized Clinical Trial. Journal of the American Medical Association (JAMA)
  Academic article

2021

• Johansen, Tonje Okkenhaug; Sundseth, Jarle Østberg; Fredriksli, Oddrun; Andresen, Hege; Zwart, John-Anker; Kolstad, Frode. (2021) Effect of Arthroplasty vs Fusion for Patients With Cervical Radiculopathy: A Randomized Clinical Trial. JAMA Network Open
  Academic article

2016

• Sundseth, Jarle Østberg; Fredriksli, Oddrun; Kolstad, Frode; Johnsen, Lars Gunnar; Pripp, Are Hugo; Andresen, Hege. (2016) The Norwegian Cervical Arthroplasty Trial (NORCAT): 2-year clinical outcome after single-level cervical arthroplasty versus fusion—a prospective, single-blinded, randomized, controlled multicenter study. European spine journal
  Academic article
• Sundseth, Jarle Østberg; Jacobsen, Eva Astrid; Kolstad, Frode; Sletteberg, Ruth; Nygaard, Øystein Petter; Johnsen, Lars Gunnar. (2016) Heterotopic ossification and clinical outcome in nonconstrained cervical arthroplasty 2 years after surgery: the Norwegian Cervical Arthroplasty Trial (NORCAT). European spine journal
  Academic article

2015

• Sundseth, Jarle Østberg; Kolstad, Frode; Johnsen, Lars Gunnar; Pripp, Are Hugo; Nygaard, Øystein Petter; Andresen, Hege. (2015) The Neck Disability Index (NDI) and its correlation with quality of life and mental health measures among patients with single-level cervical disc disease scheduled for surgery. Acta Neurochirurgica
  Academic article
• Meisingset, Ingebrigt; Woodhouse, Astrid; Stensdotter, Ann-Katrin; Stavdahl, Øyvind; Lorås, Håvard W.; Gismervik, Sigmund Østgård. (2015) Evidence for a general stiffening motor control pattern in neck pain: A cross sectional study. BMC Musculoskeletal Disorders
  Academic article
• Lønne, Greger; Johnsen, Lars Gunnar; Aas, Eline; Lydersen, Stian; Andresen, Hege; Rønning, Roar Eng. (2015) Comparing Cost-effectiveness of X-Stop with Minimally Invasive Decompression in Lumbar Spinal Stenosis: A Randomized Controlled Trial. Spine
  Academic article
• Lønne, Greger; Johnsen, Lars Gunnar; Rossvoll, Ivar; Andresen, Hege; Storheim, Kjersti; Zwart, John-Anker. (2015) Minimally invasive decompression versus x-stop in lumbar spinal stenosis: A randomized controlled multicenter study. Spine
  Academic article

2014

• Johnsen, Lars Gunnar; Hellum, Christian; Storheim, Kjersti; Nygaard, Øystein Petter; Brox, Jens Ivar; Rossvoll, Ivar. (2014) Cost-effectiveness of total disc replacement versus multidisciplinary rehabilitation in patients with chronic low back pain: A norwegian multicenter RCT. Spine
  Academic article

2010

• Kolstad, Frode; Nygaard, Øystein Petter; Andresen, Hege; Leivseth, Gunnar. (2010) Anterior Cervical Arthrodesis Using a "Stand Alone" Cylindrical Titanium Cage Prospective Analysis of Radiographic Parameters. Spine
  Academic article

2009

• Nygaard, Øystein P; Myran, Rigmor; Zwart, John-Anker; Kvistad, Kjell Arne; Rø, Magne; Andresen, Hege. (2009) Clinical characteristics and functional disability and relation to alar ligament MRI findings on MRI. Scnadinavian Neurosurgical Society
  Abstract

2008

• Sundseth, J; Bliksås, Andreas; Kolstad, Frode; Lied, B.; Zwart, John-Anker; Myrseth, E. . (2008) Behandling av cervikal radikulopati med fremre diskektomi og innsetting av skiveprotese eller bur (CAGE). Kliniske, billedmessige og biomekansike aspekter. En nasjonal randomisert multisenter studie. Vitenskapelige forhandlinger - De norske kirurgiske foreninger
  Abstract
• Myran, Rigmor; Kvistad, Kjell Arne; Nygaard, Øystein P; Nygaard, OP; Andresen, H; Folvik, M. (2008) Magnetic resonance imaging assessment of the alar ligaments in whiplash injuries - A case-control study. Spine
  Academic article

2007

• Myran, Rigmor; Kvistad, Kjell Arne; Andresen, Hege; Folvik, M.; Zwart, John-Anker; Nygaard, Øystein P. (2007) MR diagnostikk av alarligamentere etter whiplash. Nakkesleng og cervikobrachialgi. Tverrfaglige seminarer i Tønsberg: Rapport
  Abstract
• Nygaard, Øystein P; Lønne, Greger; Husby, P; Grundnes, O; Rossvoll, Ivar; Johnsen, Lars Gunnar. (2007) Sammenligning av to kirurgiske metoder for behandling av sentral spinal stenose. Presentasjon av protokollen for en nasjonal multisenterstudie. Vitenskapelige forhandlinger - De norske kirurgiske foreninger
  Abstract