2026

• Eckert, Tobias; Berge, Martin Aursand; Long, Michael; Heras, Martí de las; Alvarez, Paula; Blain, Hubert; Braun, Julia; Buekers, Joren; Caulfield, Brian; Engdal, Monika. (2026) Construct validity of real-world digital mobility outcomes in patients after proximal femoral fracture: a cross-sectional observational study. Scientific Reports
  Vitenskapelig artikkel
• Becker, Clemens; Eckert, Tobias; Klenk, Jochen; Jansen, Carl-Phillip; Berge, Martin Aursand; Engdal, Monika; Vereijken, Beatrix; Brenner, Niki; Helbostad, Jorunn Hege Lægdheim; Saltvedt, Ingvild. (2026) Digital mobility outcomes to describe real-world walking during recovery from a hip fracture: the Mobilise-D perspective. European Geriatric Medicine
  Vitenskapelig artikkel

2025

• Midtgaard, Kaare Sourin; Flugsrud, Gunnar Birkeland; Jonsson, Kenneth B.; Snellman, Greta; Coucheron, Marius; Djuv, Ane; Grundel, Dag; Johnsen, Lars Gunnar; Laudal, Espen Spildo; Mjaaland, Knut Erik. (2025) Tension Band Wiring Versus Precontoured Plate Fixation for 2-Part and Multifragmented Olecranon Fractures: A Prospective Randomized Trial. Journal of Bone and Joint Surgery. American volume
  Vitenskapelig artikkel
• Berge, Martin Aursand; Paraschiv-Ionescu, Anisoara; Kirk, Cameron; Küderle, Arne; Micó-Amigo, Encarna; Becker, Clemens; Cereatti, Andrea; Din, Silvia Del; Engdal, Monika; Garcia-Aymerich, Judith. (2025) Evaluating the Accuracy and Reliability of Real-World Digital Mobility Outcomes in Older Adults After Hip Fracture: Cross-Sectional Observational Study. JMIR Formative Research
  Vitenskapelig artikkel
• Salvesen, Eirik Solheim; Taraldsen, Kristin; Lønne, Greger; Lydersen, Stian; Lamb, Sarah Elizabeth; Opdal, Kjersti; Saltvedt, Ingvild Tina; Johnsen, Lars Gunnar. (2025) Characteristics and outcomes for hip fracture patients in an integrated orthogeriatric care model: a descriptive study of four discharge pathways with one-year follow-up. BMC Musculoskeletal Disorders
  Vitenskapelig artikkel
• Andvig, Jørgen Garberg; Johnsen, Lars Gunnar; Nilsen, Sara Marie; Bjørnelv, Gudrun Maria Waaler; Asheim, Andreas. (2025) Falling rates but projected rising numbers of fractures in elderly Norwegians: a study of fracture rates in the Norwegian patient registry from 2010 to 2021, extrapolated to 2041. Acta Orthopaedica
  Vitenskapelig artikkel
• Dakhil, Shams; Djuv, Ane; Saltvedt, Ingvild Tina; Wyller, Torgeir Bruun; Frihagen, Frede; Johnsen, Lars Gunnar; Taraldsen, Kristin; Helbostad, Jorunn Hege Lægdheim; Watne, Leiv Otto; Paulsen, Aksel. (2025) Postoperative outcomes in patients operated for extra- and intracapsular hip fractures – a secondary analysis of two randomized controlled trials. BMC Musculoskeletal Disorders
  Vitenskapelig artikkel

2024

• Kirk, Cameron; Küderle, Arne; Micó-Amigo, M. Encarna; Bonci, Tecla; Paraschiv-Ionescu, Anisoara; Ullrich, Martin; Soltani, Abolfazl; Gazit, Eran; Salis, Francesca; Alcock, Lisa. (2024) Correction to: Mobilise-D insights to estimate real-world walking speed in multiple conditions with a wearable device (Scientific Reports, (2024), 14, 1, (1754), 10.1038/s41598-024-51766-5). Scientific Reports
  Korrigendum
• Liyanarachi, Suki; Liyanarachi, Kristin Vardheim; Liyanarachi, Don Ransi; Johnsen, Lars Gunnar. (2024) Sykehuslegers håndhilsevaner før og etter covid-19-pandemien. Tidsskrift for Den norske legeforening (Tidsskriftet)
  Vitenskapelig artikkel

2023

• Dehli, Trond; Wisborg, Torben; Johnsen, Lars Gunnar; Brattebø, Guttorm; Eken, Torsten. (2023) Mortality after hospital admission for trauma in Norway: A retrospective observational national cohort study. Injury
  Vitenskapelig artikkel
• Taraldsen, Kristin; Polhemus, A.; Engdal, Monika; Jansen, C.-P.; Becker, C.; Brenner, N.; Blain, H.; Johnsen, Lars Gunnar; Vereijken, Beatrix. (2023) Evaluation of mobility recovery after hip fracture: a scoping review of randomized controlled studies. Osteoporosis International
  Vitenskapelig oversiktsartikkel
• Dakhil, Shams; Saltvedt, Ingvild Tina; Saltyte Benth, Jurate; Thingstad, Anne Pernille Mæhle; Watne, Leiv; Wyller, Torgeir Bruun; Helbostad, Jorunn Hege Lægdheim; Frihagen, Frede; Johnsen, Lars Gunnar; Taraldsen, Kristin. (2023) Longitudinal trajectories of functional recovery after hip fracture. PLOS ONE
  Vitenskapelig artikkel
• Wisborg, Torben; Dehli, Trond; Eken, Torsten; Brattebø, Guttorm; Johnsen, Lars Gunnar. (2023) Forskjeller i mortalitet hos traumepasienter. Tidsskrift for Den norske legeforening (Tidsskriftet)
  Kommentar
• Runde, Henrik Alexander; Taraldsen, Kristin; Follestad, Turid; Saltvedt, Ingvild Tina; Johnsen, Lars Gunnar. (2023) The impact of cognitive function on physical activity, physical function and quality of life in older adults following a hip fracture. Age and Ageing
  Vitenskapelig artikkel

2022

• Mikolaizak, A. Stefanie; Rochester, Lynn; Maetzler, Walter; Sharrack, Basil; Demeyer, Heleen; Mazzà, Claudia; Caulfield, Brian; Garcia-Aymerich, Judith; Vereijken, Beatrix; Arnera, Valdo. (2022) Connecting real-world digital mobility assessment to clinical outcomes for regulatory and clinical endorsement–the Mobilise-D study protocol. PLOS ONE
  Vitenskapelig artikkel

2021

• Nilsen, Sara Marie; Asheim, Andreas; Carlsen, Fredrik; Anthun, Kjartan Sarheim; Johnsen, Lars Gunnar; Vatten, Lars Johan; Bjørngaard, Johan Håkon. (2021) High volumes of recent surgical admissions, time to surgery, and 60-day mortality. The Bone & Joint Journal
  Vitenskapelig artikkel
• Garratt, Andrew M.; Furunes, Håvard; Hellum, Christian; Solberg, Tore; Brox, Jens Ivar; Storheim, Kjersti; Johnsen, Lars Gunnar. (2021) Evaluation of the EQ-5D-3L and 5L versions in low back pain patients. Health and Quality of Life Outcomes
  Vitenskapelig artikkel
• Dakhil, Shams; Thingstad, Pernille; Frihagen, Frede; Johnsen, Lars Gunnar; Lydersen, Stian; Skovlund, Eva; Wyller, Torgeir Bruun; Sletvold, Olav; Saltvedt, Ingvild; Watne, Leiv. (2021) Orthogeriatrics prevents functional decline in hip fracture patients: report from two randomized controlled trials. BMC Geriatrics
  Vitenskapelig artikkel
• Haugan, Kristin; Halsteinli, Vidar; Døhl, Øystein; Basso, Trude; Johnsen, Lars Gunnar; Foss, Olav A.. (2021) Health care services and costs after hip fracture, comparing conventional versus standardised care: A retrospective study with 12-month follow-up. Injury
  Vitenskapelig artikkel

2020

• Nilsen, Sara Marie; Bjørngaard, Johan Håkon; Carlsen, Fredrik; Anthun, Kjartan Sarheim; Johnsen, Lars Gunnar; Vatten, Lars Johan; Asheim, Andreas. (2020) Hospitals' Discharge Tendency and Risk of Death - An Analysis of 60,000 Norwegian Hip Fracture Patients. Clinical Epidemiology
  Vitenskapelig artikkel

2019

• Haddon, James; Buciuto, Robert; Johnsen, Lars Gunnar. (2019) A prospective randomized trial of 100 patients using trochanteric support plates; worth their mettle?. Injury
  Vitenskapelig artikkel

2018

• Asheim, Andreas; Nilsen, Sara Marie; Toch-Marquardt, Marlen; Anthun, Kjartan Sarheim; Johnsen, Lars Gunnar; Bjørngaard, Johan Håkon. (2018) Time of admission and mortality after hip fracture – a detailed look at the weekend effect in a nationwide study of 55 211 hip fracture patients in Norway. Acta Orthopaedica
  Vitenskapelig artikkel

2017

• Haugan, Kristin; Johnsen, Lars Gunnar; Basso, Trude; Foss, Olav A.. (2017) Mortality and readmission following hip fracture surgery: A retrospective study comparing conventional and fast-track care. BMJ Open
  Vitenskapelig artikkel
• Johnsen, Lars Gunnar. (2017) HOFTEBRUDD = BLÅLYS ?. HJEMMESIDE NKT TRAUME
  Populærvitenskapelig artikkel
• Johnsen, Lars Gunnar. (2017) PREHOSPITAL HÅNDTERING AV EKSTREMITETSSKADER. HJEMMESIDE NKT TRAUME
  Populærvitenskapelig artikkel
• Furunes, Håvard; Storheim, Kjersti; Brox, Jens Ivar; Johnsen, Lars Gunnar; Skouen, Jan Sture; Franssen, Eric; Solberg, Tore; Sandvik, Leiv; Hellum, Christian. (2017) Total disc replacement versus multidisciplinary rehabilitation in patients with chronic low back pain and degenerative discs: 8-year follow-up of a randomized controlled multicenter trial. The spine journal
  Vitenskapelig artikkel
• Johnsen, Lars Gunnar. (2017) BRUK AV PREHOSPITALE TJENESTER I STANDARDISERTE PASIENTFORLØP.             ERFARINGER FRA FAST TRACK HOFTEBRUDD VED ST OLAV. HJEMMESIDE NKT TRAUME
  Populærvitenskapelig artikkel
• Johnsen, Lars Gunnar. (2017) KAN RANDOMISERTE KONTROLLERTE KLINISKE MULTISENTERSTUIDER I  TRAUMATOLOGI ENDRE KLINISK PRAKSIS ?. HJEMMESIDE NKT TRAUME
  Populærvitenskapelig artikkel
• Aa, Elizabeth; Granlund, Sylvia; Midtdal, Kristin; Blix, Hege Salvesen; Johnsen, Lars Gunnar; Granås, Anne Gerd. (2017) Legemiddelepikrise fra farmasøyt - følges den opp av fastlege?. Norsk Farmaceutisk Tidsskrift (NFT)
  Vitenskapelig artikkel

2016

• Sundseth, Jarle Østberg; Fredriksli, Oddrun; Kolstad, Frode; Johnsen, Lars Gunnar; Pripp, Are Hugo; Andresen, Hege; Myrseth, Erling; Müller, Kay; Nygaard, Øystein Petter; Zwart, John-Anker. (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
  Vitenskapelig artikkel
• Sundseth, Jarle Østberg; Jacobsen, Eva Astrid; Kolstad, Frode; Sletteberg, Ruth; Nygaard, Øystein Petter; Johnsen, Lars Gunnar; Pripp, Are Hugo; Andresen, Hege; Fredriksli, Oddrun; Myrseth, Erling. (2016) Heterotopic ossification and clinical outcome in nonconstrained cervical arthroplasty 2 years after surgery: the Norwegian Cervical Arthroplasty Trial (NORCAT). European spine journal
  Vitenskapelig artikkel
• Gjerde, Anne Marie; Aa, Elizabeth; Sund, Janne Kutschera; Stenumgård, Pål Sigurd; Johnsen, Lars Gunnar. (2016) Medication reconciliation of patients with hip fracture by clinical pharmacists. European Journal of Hospital Pharmacy (EJHP)
  Vitenskapelig artikkel

2015

• Sundseth, Jarle; Sundseth, Antje; Thommessen, Bente; Johnsen, Lars Gunnar; Altmann, Marianne; Sorteberg, Wilhelm; Lindegaard, Karl-Fredrik; Berg-Johnsen, Jon. (2015) Long-term outcome and quality of life after craniectomy in speech-dominant swollen middle cerebral artery infarction. Neurocritical Care
  Vitenskapelig artikkel
• Sundseth, Jarle Østberg; Kolstad, Frode; Johnsen, Lars Gunnar; Pripp, Are Hugo; Nygaard, Øystein Petter; Andresen, Hege; Fredriksli, Oddrun; Myrseth, Erling; Züchner, Mark; Zwart, John-Anker. (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
  Vitenskapelig artikkel
• Prestmo, Anders; Hagen, Gunhild; Sletvold, Olav; Helbostad, Jorunn L.; Thingstad, Pernille; Taraldsen, Kristin; Lydersen, Stian; Halsteinli, Vidar; Saltnes, Turi; Lamb, Sarah. (2015) Comprehensive geriatric care for patients with hip fractures: a prospective, randomised, controlled trial. The Lancet
  Vitenskapelig artikkel
• Lønne, Greger; Johnsen, Lars Gunnar; Rossvoll, Ivar; Andresen, Hege; Storheim, Kjersti; Zwart, John-Anker; Nygaard, Øystein Petter. (2015) Minimally invasive decompression versus x-stop in lumbar spinal stenosis: A randomized controlled multicenter study. Spine
  Vitenskapelig artikkel
• Johnsen, Lars Gunnar; Watne, Leiv Otto; Frihagen, Frede Jon; Helbostad, Jorunn L.; Prestmo, Anders; Saltvedt, Ingvild; Sletvold, Olav; Wyller, Torgeir Bruun. (2015) Hvorfor ortogeriatri?. Tidsskrift for Den norske legeforening (Tidsskriftet)
  Kommentar
• Lønne, Greger; Johnsen, Lars Gunnar; Aas, Eline; Lydersen, Stian; Andresen, Hege; Rønning, Roar Eng; Nygaard, Øystein Petter. (2015) Comparing Cost-effectiveness of X-Stop with Minimally Invasive Decompression in Lumbar Spinal Stenosis: A Randomized Controlled Trial. Spine
  Vitenskapelig artikkel

2014

• Johnsen, Lars Gunnar; Hellum, Christian; Storheim, Kjersti; Nygaard, Øystein Petter; Brox, Jens Ivar; Rossvoll, Ivar; Rø, Magne; Andresen, Hege; Lydersen, Stian; Grundnes, Oliver. (2014) Cost-effectiveness of total disc replacement versus multidisciplinary rehabilitation in patients with chronic low back pain: A norwegian multicenter RCT. Spine
  Vitenskapelig artikkel
• Granlund, Sylvia; Blix, Hege Salvesen; Johnsen, Lars Gunnar; Foss, Olav. (2014) Epikrise med farmasøytnotat fra St. Olavs Hospital – Når informasjonen fram?. Universitetet i Oslo
  Masteroppgave
• Aa, Elizabeth; Granås, Anne Gerd; Blix, Hege Salvesen; Johnsen, Lars Gunnar. (2014) Epikrise med farmasøytnotat Fastlegers erfaringer med og nytte av farmasøytnotat ved utskrivning fra St. Olavs Hospital. Universitetet i Oslo
  Masteroppgave
• Midtdal, Kristin; Blix, Hege Salvesen; Johnsen, Lars Gunnar; Foss, Olav. (2014) Epikrise med farmasøytnotat fra St. Olavs Hospital – når informasjonen fram?. Universitetet i Oslo
  Masteroppgave
• Johnsen, Lars Gunnar. (2014) Surgery with total disc replacement compared to rehabilitation in patients with chronic low back pain and degenerative disc disease : clinical, health economical and biomechanical perspectives. Norges teknisk-naturvitenskapelige universitet
  Doktoravhandling
• Lønne, Greger; Ødegård, Bent; Johnsen, Lars Gunnar; Solberg, Tore; Kvistad, Kjell Arne; Nygaard, Øystein Petter. (2014) MRI evaluation of lumbar spinal stenosis: Is a rapid visual assessment as good as area measurement?. European spine journal
  Vitenskapelig artikkel

2013

• Berg, Linda; Hellum, Christian; Gjertsen, Øivind; Neckelmann, Gesche F; Johnsen, Lars Gunnar; Storheim, Kjersti; Brox, Jens Ivar; Eide, Geir Egil; Espeland, Ansgar. (2013) Do more MRI findings imply worse disability or more intense low back pain? A cross-sectional study of candidates for lumbar disc prosthesis. Skeletal Radiology
  Vitenskapelig artikkel
• Solberg, Tore; Johnsen, Lars Gunnar; Nygaard, Øystein Petter; Grotle, Margreth. (2013) Can we define success criteria for lumbar disc surgery? Estimates for a substantial amount of improvement in core outcome measures. Acta Orthopaedica
  Vitenskapelig artikkel
• Johnsen, Lars Gunnar; Brinckmann, Paul; Hellum, Christian; Rossvoll, Ivar; Leivseth, Gunnar. (2013) Segmental mobility, disc height and patientreported outcomes after surgery for degenerative disc disease A PROSPECTIVE RANDOMISED TRIAL COMPARING DISC REPLACEMENT AND MULTIDISCIPLINARY REHABILITATION. The Bone & Joint Journal
  Vitenskapelig artikkel
• Johnsen, Lars Gunnar; Hellum, Christian; Nygaard, Øystein Petter; Storheim, Kjersti; Brox, Jens Ivar; Rossvoll, Ivar; Leivseth, Gunnar; Grotle, Margreth. (2013) Comparison of the SF6D, the EQ5D, and the oswestry disability index in patients with chronic low back pain and degenerative disc disease. BMC Musculoskeletal Disorders
  Vitenskapelig artikkel

2012

• Berg, Linda; Neckelmann, Gesche F; Gjertsen, Øivind; Hellum, Christian; Johnsen, Lars Gunnar; Eide, Geir Egil; Espeland, Ansgar. (2012) Reliability of MRI findings in candidates for lumbar disc prosthesis. Neuroradiology
  Vitenskapelig artikkel
• Hellum, Christian; Johnsen, Lars Gunnar; Gjertsen, Øivind; Berg, Linda; Neckelmann, Gesche F; Grundnes, Oliver; Rossvoll, Ivar; Skouen, Jan Sture; Brox, Jens Ivar; Storheim, Kjersti. (2012) Predictors of outcome after surgery with disc prosthesis and rehabilitation in patients with chronic low back pain and degenerative disc: 2-year follow-up. European spine journal
  Vitenskapelig artikkel
• Hellum, Christian; Berg, Linda; Gjertsen, Øivind; Johnsen, Lars Gunnar; Neckelmann, Gesche F; Storheim, Kjersti; Keller, Anne; Grundnes, Oliver; Espeland, Ansgar. (2012) Adjacent level degeneration and facet arthropathy after disc prosthesis surgery or rehabilitation in patients with chronic low back pain and degenerative disc. Spine
  Vitenskapelig artikkel
• Saltvedt, Ingvild; Prestmo, Anders; Einarsen, Elin Kristin; Johnsen, Lars Gunnar; Helbostad, Jorunn L.; Sletvold, Olav. (2012) Development and delivery of patient treatment in the Trondheim Hip Fracture Trial. A new geriatric in-hospital pathway for elderly patients with hip fracture. BMC Research Notes
  Vitenskapelig artikkel
• Berg, Linda; Gjertsen, Øivind; Hellum, Christian; Neckelmann, Gesche F; Johnsen, Lars Gunnar; Eide, Geir Egil; Espeland, Ansgar. (2012) Reliability of change in lumbar MRI findings over time in patients with and without disc prosthesis-comparing two different image evaluation methods. Skeletal Radiology
  Vitenskapelig artikkel

2011

• Hellum, Christian; Johnsen, Lars Gunnar; Storheim, Kjersti; Nygaard, Øystein Petter; Brox, Jens Ivar; Rossvoll, Ivar; Rø, Magne; Sandvik, Leiv; Grundnes, Oliver. (2011) Surgery with disc prosthesis versus rehabilitation in patients with lowback pain and degenerative disc: two year follow-up of randomised study. BMJ. British Medical Journal
  Vitenskapelig artikkel

2009

• Hellum, Christian; Johnsen, Lars Gunnar; Storheim, K; Nygaard, Øystein P; Brox, Jens Ivar; Rossvoll, Ivar; Grundnes, O. (2009) Sammenligning av operasjon med skiveprotese og tverrfaglig ryggrehabilitering ved langvarige korsryggsmerter med degenerative skiveforandringer, 2 års resultater. en prospektiv randomisert multisenterstudie. Norsk ortopedisk forenings høstmøte
  Konferanseabstract
• Hellum, Christian; Johnsen, Lars Gunnar; Storheim, K; Nygaard, Øystein P; Brox, Jens Ivar; Rossvoll, Ivar; Grundnes, O. (2009) Effect of total lumbar disc prsthesis versus multidisciplinary rehabilitation in patients with chronic low back pain and degenerative disc. 2-years results from a prospective randomized clinical multicenter trial. Eurospine
  Konferanseabstract

2007

• Nygaard, Øystein P; Lønne, Greger; Husby, P; Grundnes, O; Rossvoll, Ivar; Johnsen, Lars Gunnar; Kvistad, Kjell Arne; Andresen, Hege. (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
  Konferanseabstract

2005

• Bjerkeset, Tormod; Johnsen, Lars Gunnar; Kibsgaard, Leif; Fuglesang, Paul. (2005) Kirurgisk behandling av degenerative korsryggslidelser. Tidsskrift for Den norske legeforening (Tidsskriftet)
  Vitenskapelig artikkel

2004

• Finsen, Vilhjalmur; Johnsen, Lars Gunnar; Tranø, Gerd; Sneve, Katrin. (2004) Hip fracture incidence in central norway: a followup study. Clinical Orthopaedics and Related Research
  Vitenskapelig artikkel