Academic article

• Martin Mossige; Olav Lutro; Anne Marie Fenstad et al. (2026). Validation of periprosthetic joint infection after total knee arthroplasty: a cohort study on 423 cases from the Norwegian Arthroplasty Register. (external link)
• Julius Tetens Hald; Anne Marie Fenstad; Anders El-Galaly et al. (2026). Similar incidence and implant survival of multiply revised knee arthroplasties in Norway and Denmark: a register study of the Danish and Norwegian Knee Arthroplasty registries from 1998–2021. (external link)
• Veronica Pentland; Zoe Thompson; Alimu Dayimu et al. (2026). Survivorship of modern total hip replacement to 30 years: systematic review, meta-analysis, and extrapolation of global joint registry data. (external link)
• Harald Nagelgaard Omenås; Einar Lindalen; Ove Nord Furnes et al. (2025). Patellofemoral arthroplasty-patient demographics and revision causes compared with total and medial unicompartmental knee arthroplasty: long-term follow-up data from the Norwegian Arthroplasty Register. (external link)
• Tesfaye Hordofa Leta; Richard N. Chang; Stein Atle Lie et al. (2025). Antibiotic-Loaded Bone Cement and Risk of Infection After Knee Arthroplasty in High-Risk Patients. (external link)
• Håkon Greve  Johannessen; Geir Hallan; Thomas Istvan Edelsvärd Kadar et al. (2025). Early cup migration and wear as predictors for later aseptic loosening: a secondary evaluation of a randomized controlled RSA trial on cemented hip arthroplasties with 18-year follow-up. (external link)
• Nina Jullum Kise; Siri Marie M Eliassen; Ove Nord Furnes et al. (2025). Fear avoidance and catastrophizing are associated with both knee awareness and quality of life in knee osteoarthritis patients: a secondary report of a cross-sectional study | Acta Orthopaedica. (external link)
• Sjur Børsheim; Torbjørn Kristensen; Geir Hallan et al. (2025). Periprosthetic femoral fracture following hip arthroplasty : which component design and fixation method has the lowest risk of reoperation?. (external link)
• Konstantinos Hatzikotoulas; Lorraine Southam; Lilja Stefansdottir et al. (2025). Translational genomics of osteoarthritis in 1,962,069 individuals. (external link)
• Eirik Sørdal Brendsdal; Stein Atle Lie; Ove Nord Furnes et al. (2022). Long-term survival of 2997 finger metacarpophalanageal joint arthroplasties from the Norwegian Arthroplasty Register. (external link)
• Jonathan M R. French; Kevin Deere; Michael R. Whitehouse et al. (2024). The completeness of national hip and knee replacement registers. (external link)
• Håvard Dale; Anne Marie Fenstad; Geir Hallan et al. (2012). Increasing risk of prosthetic joint infection after total hip arthroplasty 2,778 revisions due to infection after 432,168 primary THAs in the Nordic Arthroplasty Register Association (NARA). (external link)
• Stein Atle Lie; Lars B. Engesæter; Leif Ivar Havelin et al. (2002). Early postoperative mortality after 67 548 total hip replacements. Causes of death and tromboprophylaxis in 68 hospitals in Norway from 1987 to 1999.. (external link)
• Ove Furnes; Birgitte Espehaug; Stein Atle Lie et al. (2002). Early failures among 7174 primary total knee replacements. A follow-up study from the Norwegian arthroplasty register 1994-2000.. (external link)
• Turid Rognsvåg; Maren Falch Lindberg; Anners Lerdal et al. (2021). Development of an internet-delivered cognitive behavioral therapy program for use in combination with exercise therapy and education by patients at increased risk of chronic pain following total knee arthroplasty. (external link)
• Guy Cafri; Samprit Banerjee; Art Sedrakyan et al. (2015). Meta-analysis of survival curve data using distributed health data networks: application to hip arthroplasty studies of the International Consortium of Orthopaedic Registries. (external link)
• Tone Wikene Nystad; Anne Marie Fenstad; Ove Furnes et al. (2016). Reduction in orthopaedic surgery in patients with rheumatoid arthritis: a Norwegian register-based study. (external link)
• Birgitte Espehaug; Ove Furnes; Lars B. Engesæter et al. (2011). Hip arthroplasty in Norway 1989-2008. (external link)
• Einar Lindalen; Leif Ivar Havelin; Lars Nordsletten et al. (2011). Is reverse hybrid hip replacement the solution? 3,963 primary hip replacements with cemented cup and uncemented stem, from the Norwegian Arthroplasty Register. (external link)
• Tesfaye Hordofa Leta; Anne Marie Fenstad; Stein Håkon Låstad Lygre et al. (2023). The use of antibiotic-loaded bone cement and systemic antibiotic prophylactic use in 2,971,357 primary total knee arthroplasties from 2010 to 2020: an international register-based observational study among countries in Africa, Europe, North America, and Oceania. (external link)
• SM Kurtz; KL Ong; J Schmier et al. (2007). Future clinical and economic impact of revision total hip and knee arthroplasty. (external link)
• Mona Badawy; Birgitte Espehaug; Kari Indrekvam et al. (2014). Higher revision risk for unicompartmental knee arthroplasty in low-volume hospitals. (external link)
• Marianne H Gillam; Stein Atle Lie; Amy Salter et al. (2013). The progression of end-stage osteoarthritis: analysis of data from the Australian and Norwegian joint replacement registries using a multi-state model. (external link)
• Randi Margrete Hole; Anne Marie Fenstad; Jan-Erik Gjertsen et al. (2024). Influence of design features and brand of reverse shoulder arthroplasties on survivorship and reasons for revision surgery: results of 5,494 arthroplasties with up to 15 years’ follow-up reported to the Norwegian Arthroplasty Register 2007–2022. (external link)
• Ove Furnes; Stein Atle Lie; Birgitte Espehaug et al. (2001). Hip disease and the prognosis of total hip replacements. A review of 53 698 primary total hip replacements reported to the Norwegian arthroplasty register 1987-1999.. (external link)
• Birgitte Espehaug; Ove Furnes; Leif Ivar Havelin et al. (2002). The type of cement and failure of total hip replacements.. (external link)
• Øystein Espeland Karlsen; Håvard Dale; Ove Nord Furnes et al. (2025). Trends in surgical site infection and periprosthetic joint infection after primary total hip arthroplasty in two national health registers 2013–2022. (external link)
• Gunnar Petursson; Anne Marie Fenstad; Leif Ivar Havelin et al. (2015). Better survival of hybrid total knee arthroplasty compared to cemented arthroplasty. (external link)
• Bjørg-Tilde Fevang; Tone Wikene Nystad; Arne Kr Skredderstuen et al. (2015). Improved survival for anatomic total shoulder prostheses: Results of 4,173 shoulder arthroplasties reported to the Norwegian Arthroplasty Register from 1994 through 2012. (external link)
• Keijo T. Mäkelä; Markus Matilainen; Pekka Pulkkinen et al. (2014). Countrywise results of total hip replacement. (external link)
• Maya Maya Barbosa Silva; Jan-Erik Gjertsen; Irene Ohlen Moldestad et al. (2024). Effects of implant precoating and fat contamination on the stability of the tibial baseplate. (external link)
• Tone Wikene Nystad; Yngvil Solheim Husum; Ove Furnes et al. (2018). Incidence and predictive factors for orthopedic surgery in patients with psoriatic arthritis. (external link)
• Einar Johan Braém Amlie; Leif Ivar Havelin; Ove Furnes et al. (2014). Worse patient-reported outcome after lateral approach than after anterior and posterolateral approach in primary hip arthroplasty. A cross-sectional questionnaire study of 1,476 patients 1-3 years after surgery. (external link)
• RS Namba; Stephen Graves; Otto Robertsson et al. (2014). International comparative evaluation of knee replacement with fixed or mobile non-posterior-stabilized implants. (external link)
• Paul Johan Høl; Geir Hallan; Ove Nord Furnes et al. (2022). Similarly low-blood metal ion levels at 10-years follow-up of total hip arthroplasties with Oxinium, CoCrMo, and stainless steel femoral heads. Data from a randomized clinical trial. (external link)
• Karola Pawloy; Anne Marie Fenstad; Tesfaye Hordofa Leta et al. (2023). No difference in risk of revision due to infection between clindamycin and cephalosporins as antibiotic prophylaxis in cemented primary total knee replacements: a report from the Norwegian Arthroplasty Register 2005–2020. (external link)
• Birgitte Espehaug; Ove Furnes; Leif Ivar Havelin et al. (2006). Registration completeness in the Norwegian arthroplasty register.. (external link)
• Stein Atle Lie; Leif Ivar Havelin; Ove Furnes et al. (2004). Failure rates for 4762 revision total hip arthroplasties in the Norwegian arthroplasty register.. (external link)
• Lars B. Engesæter; Stein Atle Lie; Birgitte Espehaug et al. (2003). Antibiotic prophylaxis in total hip arthroplasty. Effects of antibiotic prophylaxis systemically and in bone cement on the revision rate of 22,170 primary hip replacements followed 0-14 years in the Norwegian arthroplasty register.. (external link)
• Ove Furnes (2004). Hofteproteser og sementer.. (external link)
• James Slover; Birgitte Espehaug; Leif Ivar Havelin et al. (2006). Cost-effectiveness of unicompartmental and total knee arthroplasty in elderly low-demand patients. A Markov decision analysis.. (external link)
• Stein Atle Lie; Stein Emil Vollset; Ove Furnes et al. (2004). Nasjonalt register for leddproteser. Til beste for pasienter og det norske helsevesenet.. (external link)
• Sven Bystrøm; Birgitte Espehaug; Ove Furnes et al. (2003). Femoral head size is a risk factor for total hip luxation. A study of 24 987 primary hip arthroplasties from the Norwegian arthroplasty register.. (external link)
• Geir Hallan; Ove Furnes; Stein Atle Lie et al. (2007). Medium and long-term performance of 11 516 uncemented primary femoral stems from the Norwegian arthroplasty register.. (external link)
• Jan-Erik Gjertsen; Lars B. Engesæter; Ove Nord Furnes et al. (2008). The Norwegian Hip Fracture Register - Experiences after the first 2 years and 15,576 reported operations. (external link)
• Jan-Erik Gjertsen; Tarjei Vinje; Stein Atle Lie et al. (2008). Patient satisfaction, pain, and quality of life 4 months after displaced femoral neck fractures - A comparison of 663 fractures treated with internal fixation and 906 with bipolar hemiarthroplasty reported to the Norwegian Hip Fracture Register. (external link)
• Scott J. Macinnes; Konstantinos Hatzikotoulas; Anne Marie Fenstad et al. (2019). The 2018 Otto Aufranc Award: How does genome-wide variation affect osteolysis risk after THA?. (external link)
• Håkon Langvatn; Christoffer Bartz-Johannessen; Johannes Cornelis Schrama et al. (2019). Operating room ventilation-Validation of reported data on 108 067 primary total hip arthroplasties in the Norwegian Arthroplasty Register. (external link)
• Stein Håkon Lygre; Birgitte Espehaug; Leif Ivar Havelin et al. (2010). Pain and Function in Patients After Primary Unicompartmental and Total Knee Arthroplasty. (external link)
• Kjell Matre; Leif Ivar Havelin; Jan-Erik Gjertsen et al. (2013). TRIGEN INTERTAN Intramedullary Nail Versus Sliding Hip Screw: A Prospective, Randomized Multicenter Study on Pain, Function, and Complications in 684 Patients with an Intertrochanteric or Subtrochanteric Fracture and One Year of Follow-up. (external link)
• Alma B. Pedersen; Aurélie Mailhac; Anne Garland et al. (2020). Similar early mortality risk after cemented compared with cementless total hip arthroplasty for primary osteoarthritis: data from 188,606 surgeries in the Nordic Arthroplasty Register Association database. (external link)
• J.S Cummins; I Tomek; S Kantor et al. (2009). Cost effictiveness of antibiotica-impregnated bone cement used in primary total hip arthroplasty.. (external link)
• A Småbrekke; Birgitte Espehaug; Leif Ivar Havelin et al. (2004). Operating time and survival of primary total hip replacements. A reviw of 31,745 primary cemented and uncemented total hip replacements from local hospitals reported to the Norwegian arthroplasty register 1987-2001.. (external link)
• Sonia Rojewski; Marianne Westberg; Lars Nordsletten et al. (2023). Postvaccination immune responses and risk of primary total hip arthroplasty—A population-based cohort study. (external link)
• Stein Atle Lie; Geir Hallan; Lars B. Engesæter et al. (2007). Liner replacement at revision surgery for uncemented primary acetabular cups.. (external link)
• A. J. Arthursson; Ove Furnes; Birgitte Espehaug et al. (2005). Validation of data in the Norwegian arthroplasty register and the Norwegian patient register. 5134 primary total hip arthroplasties and revisions operated at a single hospital between 1987 and 2003.. (external link)
• Ove Furnes; Leif Ivar Havelin; Birgitte Espehaug et al. (2003). Det norske leddproteseregisteret- 15 nyttige år for pasientene og for helsevesenet.. (external link)
• Lars B. Engesæter; Ove Furnes; Leif Ivar Havelin (2008). Developmental dysplasia of the hip-good results of later total hip arthroplasty.. (external link)
• Marianne Bakke Johnsen; Alf Inge Hellevik; Milada C Småstuen et al. (2017). The mediating effect of body mass index on the relationship between smoking and hip or knee replacement due to primary osteoarthritis. A population-based cohort study (the HUNT study).. (external link)
• Olav Lutro; Synnøve Mo; Marianne Bollestad et al. (2024). How good are surgeons at disclosing periprosthetic joint infection at the time of revision, based on pre- and intra-operative assessment? A study on 16,922 primary total hip arthroplasties reported to the Norwegian Arthroplasty Register. (external link)
• Mona Badawy; Birgitte Espehaug; Anne Marie Fenstad et al. (2017). Patient and surgical factors affecting procedure duration and revision risk due to deep infection in primary total knee arthroplasty.. (external link)
• Maria Holsen; Veronica Hovind; Haji Kedir Bedane et al. (2022). Geographical variation in orthopedic procedures in Norway: Cross-sectional population-based study. (external link)
• Cecilia Rogmark; Anne Marie Fenstad; Olof Leonardsson et al. (2014). Posterior approach and uncemented stems increases the risk of reoperation after hemiarthroplasties in elderly hip fracture patients. (external link)
• Stein Håkon Lygre; Birgitte Espehaug; Leif Ivar Havelin et al. (2011). Failure of total knee arthroplasty with or without patella resurfacing. (external link)
• Elizabeth W. Paxton; Ove Furnes; Robert S. Namba et al. (2011). Comparison of the norwegian knee arthroplasty register and a United States arthroplasty registry. (external link)
• Alma Becic Pedersen; Frank Mehnert; Leif Ivar Havelin et al. (2014). Association between fixation technique and revision risk in total hip arthroplasty patients younger than 55 years of age. Results from the nordic arthroplasty register association. (external link)
• Lars B. Engesæter; Birgitte Espehaug; Stein Atle Lie et al. (2006). Does cement increase the risk of infection in primary total hip arthroplasty? Revision rates in 56,275 cemented and uncemented primary THAs followed for 0-16 years in the Norwegian Arthroplasty Register. (external link)
• Ove Nord Furnes; Jan-Erik Gjertsen; Eivind Inderhaug et al. (2023). I starten var det Hofteregisteret- så ble vi flere. Nasjonalt Register for Leddproteser, Nasjonalt Hoftebruddregister, Nasjonalt Korsbåndregister og Nasjonalt Barnehofteregister. (external link)
• Yngvar Krukhaug; Geir Halland; Eva Hansen Dybvik et al. (2018). A survivorship study of 838 total elbow replacements: a report from the Norwegian Arthroplasty Register 1994-2016. (external link)
• Geir Hallan; Eva Dybvik; Ove Furnes et al. (2010). Metal-backed acetabular components with conventional polyethylene A REVIEW OF 9113 PRIMARY COMPONENTS WITH A FOLLOW-UP OF 20 YEARS. (external link)
• Randi Margrete Hole; Anne Marie Fenstad; Jan-Erik Gjertsen et al. (2021). Thromboprophylaxis in primary shoulder arthroplasty does not seem to prevent death: a report from the Norwegian Arthroplasty Register 2005–2018. (external link)
• Jake VON HINTZE; Ville Ponkilainen; Annette W-Dahl et al. (2025). Incidence of constrained condylar and hinged knee implants and mid-to long-term survivorship: a register-based study from the Nordic Arthroplasty Register Association (NARA). (external link)
• Tesfaye Hordofa Leta; Richard N. Chang; Anne Marie Fenstad et al. (2024). Number of Doses of Systemic Antibiotic Prophylaxis May Be Reduced in Cemented Primary Knee Arthroplasty Irrespective of Use of Antibiotic in the Cement: A Multiregistry-Based Meta-Analysis. (external link)
• Benedikt Arni Jonsson; Thomas Kadar; Leif Ivar Havelin et al. (2015). Oxinium modular femoral heads do not reduce polyethylene wear in cemented total hip arthroplasty at five years: A randomised trial of 120 hips using radiostereometric analysis. (external link)
• Stein Atle Lie; Nicole Pratt; Philip Ryan et al. (2010). Duration of the Increase in Early Postoperative Mortality After Elective Hip and Knee Replacement. (external link)
• Øystein Johannes Gøthesen; Birgitte Espehaug; Leif Ivar Havelin et al. (2014). Functional outcome and alignment in computer-assisted and conventionally operated total knee replacements: a multicentre parallel-group randomised controlled trial. (external link)
• Øystein Gøthesen; Stein Håkon Låstad Lygre; Michelle Lorimer et al. (2017). Increased risk of aseptic loosening for 43,525 rotating-platform vs. fixed-bearing total knee replacements: A Norwegian?Australian registry study, 2003?2014. (external link)
• Håvard Visnes; Tone Gifstad; Andreas Persson et al. (2022). ACL Reconstruction Patients Have Increased Risk of Knee Arthroplasty at 15 Years of Follow-up : Data from the Norwegian Knee Ligament Register and the Norwegian Arthroplasty Register from 2004 to 2020. (external link)
• Gro Sævik Dyrhovden; Stein Håkon Låstad Lygre; Mona Badawy et al. (2017). Have the causes of revision for total and unicompartmental knee arthroplasties changed during the past two decades?. (external link)
• Aarid Liland Olsen; Liv Heide Magnussen; Liv Karin Helvik Skjærven et al. (2021). Basic Body Awareness Therapy versus standard care in hip osteoarthritis. A randomized controlled trial. (external link)
• Michelle Khan; Jan-Erik Gjertsen; Anne Marie Fenstad et al. (2023). Cementing techniques for total ktnee arthroplasty in Norwegian hospitals; a questionnaire-based study. (external link)
• Birgitte Espehaug; Ove Nord Furnes; Lars B. Engesæter et al. (2009). 18 years of results with cemented primary hip prostheses in the Norwegian Arthroplasty Register Concerns about some newer implants. (external link)
• K. Mäkelä; Ove Furnes; Geir Hallan et al. (2019). The benefits of collaboration: the Nordic Arthroplasty register association.. (external link)
• Claus Varnum; Alma Bečić Pedersen; Ola Rolfson et al. (2019). Impact of hip arthroplasty registers on orthopaedic practice and perspectives for the future. (external link)
• Scott J Macinnes; K Hatzikotoulas; Anne Marie Fenstad et al. (2019). Erratum to: The 2018 Otto Aufranc Award: How does genome-wide variation affect osteolysis risk after THA?. (external link)
• Håvard Dale; Sjur Børsheim; Torbjørn Kristensen et al. (2019). Fixation, sex and age: highest risk of revision for uncemented stems in elderly women- data from 66,995 primary total hip arthroplasties in the Norwegian arthroplasty register.. (external link)
• Ingvild Ø. Engesæter; Stein Atle Lie; Trude G. Lehmann et al. (2008). Neonatal hip instability and risk of total hip replacement in young adulthood. (external link)
• Ove Furnes; Stein Atle Lie; Stein Emil Vollset et al. (1997). Exeter and Charnley arthroplasties With Boneloc or high viscosity cement. Comparison of 1127 arthroplasties followed for 5 years in the Norwegian arthroplasty register.. (external link)
• Alma B. Pedersen; Ina Trolle Andersen; Søren Overgaard et al. (2019). Optimal duration of anticoagulant thromboprophylaxis in total hip arthroplasty: new evidence in 55,540 patients with osteoarthritis from the Nordic Arthroplasty Register Association (NARA) group. (external link)
• Thomas Birkenes; Ove Nord Furnes; Stein Håkon Låstad Lygre et al. (2024). Previous cartilage surgery is associated with inferior patient-reported outcomes after knee arthroplasty. (external link)
• Leif Ivar Havelin; Anne Marie Fenstad; Roger Salomonsson et al. (2009). The Nordic Arthroplasty Register Association A unique collaboration between 3 national hip arthroplasty registries with 280,201 THRs. (external link)
• Randi Margrete Hole; Anne Marie Fenstad; Jan-Erik Gjertsen et al. (2023). The Delta III and Delta Xtend reverse shoulder arthroplasty—risk of revision and failure mechanisms: a report on 3650 cases from the Norwegian Arthroplasty Register 1994-2021. (external link)
• Nina Østerås; Eline Aas; Tuva Moseng et al. (2023). Longer-term quality of care, effectiveness, and cost-effectiveness of implementing a model of care for osteoarthritis: A cluster-randomized controlled trial. (external link)
• Leiv M Hove; PT Nilsen; Ove Furnes et al. (1997). Open reduction and internal fixation of displaced intraarticular fractures of the distal radius. 31 patients followed for 3-7 years. (external link)
• Tommy Frøseth Aae; Rune Bruhn Jakobsen; Ida Rashida Khan Bukholm et al. (2021). Compensation claims after hip arthroplasty surgery in Norway 2008–2018. (external link)
• Leiv M Hove; Ove Furnes; Per Torgeir Nilsen et al. (1997). Closed reduction and external fixation of unstable fractures of the distal radius.. (external link)
• Mika J. Niemeläinen; Keijo T. Mäkelä; Otto Robertsson et al. (2017). Different incidences of knee arthroplasty in the Nordic countries: A population-based study from the Nordic Arthroplasty Register Association. (external link)
• Øystein Skåden; Ove Nord Furnes; Stein Håkon Låstad Lygre et al. (2023). Did a New Design of the Oxford Unicompartmental Knee Prosthesis Result in Improved Survival? A Study From the Norwegian Arthroplasty Register 2012-2021. (external link)
• Christoffer Bartz-Johannessen; Ove Furnes; Anne Marie Fenstad et al. (2019). Homogeneity in prediction of survival probabilities for subcategories of hipprosthesis data: The nordic arthroplasty register association, 2000-2013. (external link)
• Per-Erik Johanson; Anne Marie Fenstad; Ove Furnes et al. (2010). Inferior outcome after hip resurfacing arthroplasty than after conventional arthroplasty. (external link)
• Amara Ahmad; Emma Helene Egeland; Eva Hansen Dybvik et al. (2024). Equivalent mortality after operation with sliding hip screw or intramedullary nail for trochanteric AO/OTA A1 and A2 fractures reported in the Norwegian Hip Fracture Register 2008 to 2020. (external link)
• Thomas Kadar; Ove Furnes; Arild Aamodt et al. (2012). The influence of acetabular inclination angle on the penetration of polyethylene and migration of the acetabular component: A prospective, radiostereometric study on cemented acetabular components. (external link)
• Keijo T. Mäkelä; Markus Matilainen; Pekka Pulkkinen et al. (2014). Failure rate of cemented and uncemented total hip replacements: register study of combined Nordic database of four nations. (external link)
• Tone Wikene Nystad; Ove Furnes; Leif Ivar Havelin et al. (2014). Hip replacement surgery in patients with ankylosing spondylitis. (external link)
• Ove Nord Furnes; Birgitte Espehaug; Stein Atle Lie et al. (2007). Failure mechanisms after unicompartmental and tricompartmental primary knee replacement with cement. (external link)
• Thomas Kadar; Geir Hallan; Arild Aamodt et al. (2011). A randomized study on migration of the Spectron EF and the Charnley flanged 40 cemented femoral components using radiostereometric analysis at 2 years. (external link)
• Johannes Cornelis Schrama; Birgitte Espehaug; Geir Hallan et al. (2010). Risk of Revision for Infection in Primary Total Hip and Knee Arthroplasty in Patients With Rheumatoid Arthritis Compared With Osteoarthritis: A Prospective, Population-Based Study on 108,786 Hip and Knee Joint Arthroplasties From the Norwegian Arthroplasty Register. (external link)
• Håvard Dale; Anne Marie Fenstad; Geir Hallan et al. (2023). Increasing risk of revision due to infection after primary total hip arthroplasty: results from the Nordic Arthroplasty Register Association. (external link)
• Karin Magnusson; Katrina J Scurrah; Ragnhild Ørstavik et al. (2018). Is the association between obesity and hip osteoarthritis surgery explained by familial confounding?. (external link)
• Mona Badawy; Birgitte Espehaug; Kari Indrekvam et al. (2013). Influence of hospital volume on revision rate after total knee arthroplasty with cement. (external link)
• C Bergh; Anne Marie Fenstad; Ove Furnes et al. (2014). Increased risk of revision in patients with non-traumatic femoral head necrosis. (external link)
• Bjørg-Tilde Fevang; Stein Håkon Låstad Lygre; Glenn Bertelsen et al. (2012). Good function after shoulder arthroplasty 1,107 patients with 4 different diagnoses from the Norwegian Arthroplasty Register. (external link)
• Karianne Ytterstad; Lars-Petter Granan; Børge Ytterstad et al. (2012). Registration rate in the Norwegian Cruciate Ligament Register Large-volume hospitals perform better. (external link)
• Jan-Erik Gjertsen; Valborg Baste; Jonas Meling Fevang et al. (2016). Quality of life following hip fractures: Results from the Norwegian hip fracture register. (external link)
• Øystein Gøthesen; Øystein Skåden; Gro Sævik Dyrhovden et al. (2020). Computerized navigation: A useful tool in total knee replacement.. (external link)
• Vera Baasland Halvorsen; Anne Marie Fenstad; Stephan Maximillian Röhrl et al. (2020). Hoftelidelser hos barn og unge- utredning og behandling av senfølger.. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Arne Kr Skredderstuen et al. (2016). Outcomes of unicompartmental knee arthroplasty after aseptic revision to total knee arthroplasty: a comparative study of 768 TKAs and 578 UKAs revised to TKAs from the norwegian arthroplasty register (1994 to 2011). (external link)
• Gunnar Petursson; Anne Marie Fenstad; Øystein Gøthesen et al. (2018). Computer-assisted compared with conventional total knee replacement: A Multicenter Parallel-Group Randomized Controlled Trial. (external link)
• Tone Wikene Nystad; Anne Marie Fenstad; Ove Furnes et al. (2015). Reduction in orthopaedic surgery in patients with rheumatoid arthritis: a Norwegian register-based study.. (external link)
• L Trela-Larsen; Gard Kroken; Christoffer Bartz-Johannessen et al. (2020). Personalized estimation of one-year mortality risk after elective hip or knee arthroplasty for osteoarthritis. (external link)
• Justas Zalieckas; Ivan Rios Mondragon; Paulius Pobedinskas et al. (2022). Polycrystalline diamond coating on orthopedic implants: Realization and role of surface topology and chemistry in adsorption of proteins and cell proliferation. (external link)
• Øystein Johannes Gøthesen; James Slover; Leif Ivar Havelin et al. (2013). An economic model to evaluate cost-effectiveness of computer assisted knee replacement surgery in Norway. (external link)
• Alf Inge Hellevik; Marianne Bakke Johnsen; Arnulf Langhammer et al. (2018). Metabolic syndrome as a risk factor for total hip or knee replacement due to primary osteoarthritis: A prospective cohort study (the HUNT study and the Norwegian arthroplasty register). (external link)
• Helena Kames Kjeldgaard; Haakon Eduard Meyer; Martin O’Flaherty et al. (2022). Impact of Total Hip Replacements on the Incidence of Hip Fractures in Norway During 1999–2019. A Norwegian Epidemiologic Osteoporosis Studies (NOREPOS) Study. (external link)
• Turid Rognsvåg; Ingvild Buset Bergvad; Ove Nord Furnes et al. (2024). Exercise therapy, education, and cognitive behavioral therapy alone, or in combination with total knee arthroplasty, in patients with knee osteoarthritis: a randomized feasibility study. (external link)
• Jan-Erik Gjertsen; Stein Atle Lie; Jonas Fevang et al. (2007). Total hip replacement after femoral neck fractures in elderly patients - Results of 8,577 fractures reported to the Norwegian Arthroplasty Register. (external link)
• Håvard Dale; Pål Høvding; Sindre Myklatun Tveit et al. (2020). Increasing but levelling out risk of revision due to infection after total hip arthroplasty: a study on 108,854 primary THAs in the Norwegian Arthroplasty Register from 2005 to 2019. (external link)
• Alf Inge Hellevik; Lars Nordsletten; Marianne Bakke Johnsen et al. (2017). Age of menarche is associated with knee joint replacement due to primary osteoarthritis (The HUNT Study and the Norwegian Arthroplasty Register). (external link)
• Susann Wolf; Anne Christine Johannessen; Peter Ellison et al. (2022). Inflammatory tissue reactions around aseptically loose cemented hip prostheses: A retrieval study of the Spectron EF stem with Reflection All‐Poly acetabular cup. (external link)
• Claus Varnum; Alma B Pedersen; Keijo Mäkelä et al. (2015). Increased risk of revision of cementless stemmed total hip arthroplasty with metal-on-metal bearings. Data from the Nordic Arthroplasty Register Association. (external link)
• Silje Marie Melbye; Sofie Cecilia Dietrich Haug; Anne Marie Fenstad et al. (2021). How Does Implant Survivorship Vary with Different Corail Femoral Stem Variants? Results of 51,212 Cases with Up to 30 Years Of Follow-up from the Norwegian Arthroplasty Register. (external link)
• Jan-Erik Gjertsen; Tarjei Vinje; Lars B. Engesæter et al. (2010). Internal screw fixation compared with bipolar hemiarthroplasty for treatment of displaced femoral neck fractures in elderly patients. (external link)
• Bjørg Tilde Svanes Fevang; Stein Atle Lie; Leif Ivar Havelin et al. (2009). Risk factors for revision after shoulder arthroplasty. (external link)
• Tone Wikene Nystad; Anne Marie Fenstad; Ove Furnes et al. (2018). Predictors for orthopaedic surgery in patients with rheumatoid arthritis: results from a retrospective cohort study of 1010 patients diagnosed from 1972 to 2009 and followed up until 2015. (external link)
• Mona Badawy; Anne Marie Fenstad; Kari Indrekvam et al. (2015). The risk of revision in total knee arthroplasty is not affected by previous high tibial osteotomy. (external link)
• Thomas Birkenes; Ove Nord Furnes; Stein Håkon Låstad Lygre et al. (2023). The Long-Term Risk of Knee Arthroplasty in Patients with Arthroscopically Verified Focal Cartilage Lesions : A Linkage Study with the Norwegian Arthroplasty Register, 1999 to 2020. (external link)
• Jan-Erik Gjertsen; Eva Hansen Dybvik; Ove Furnes et al. (2017). Improved outcome after hip fracture surgery in Norway: 10-year results from the Norwegian Hip Fracture Register. (external link)
• Truike M. Thien; Georgios Chatziagorou; Göran Garellick et al. (2014). Periprosthetic femoral fracture within two years after total hip replacement: Analysis of 437,629 operations in the nordic arthroplasty register association database. (external link)
• Eva Hansen Dybvik; Ove Furnes; Sophie Dorothea Fosså et al. (2014). Pelvic irradiation does not increase the risk of hip replacement in patients with gynecological cancer. A cohort study based on 8,507 patients. (external link)
• Torbjørn Kristensen; Eva Hansen Dybvik; Ove Furnes et al. (2018). More reoperations for periprosthetic fracture after cemented hemiarthroplasty With polished taper-slip stems than after anatomical and straight stems in the treatment of hip fractures.. (external link)
• Wender Figved; Eva Dybvik; Frede Frihagen et al. (2007). Conversion from failed hemiarthroplasty to total hip arthroplasty - A Norwegian Arthroplasty Register analysis of 595 hips with previous femoral neck fractures. (external link)
• Asvaldur Arthursson; Ove Nord Furnes; Birgitte Espehaug et al. (2007). Prosthesis survival after total hip arthroplasty-does surgical approach matter? Analysis of 19,304 Charnley and 6,002 Exeter primary total hip arthroplasties reported to the Norwegian Arthroplasty Register. (external link)
• Lars-Petter Granan; Roald Bahr; Kjersti Steindal et al. (2008). Development of a national cruciate ligament surgery registry. (external link)
• Eirik Weldingh; Marianne Bakke Johnsen; Kåre Birger Hagen et al. (2019). The Maternal and Paternal Effects on Clinically and Surgically Defined Osteoarthritis. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Arne Kr Skredderstuen et al. (2015). Failure of aseptic revision total knee arthroplasties: 145 Revision failures from the Norwegian Arthroplasty Register, 1994-2011. (external link)
• Alan Silman; Christophe Combescure; Rory J Ferguson et al. (2021). International variation in distribution of ASA class in patients undergoing total hip arthroplasty and its influence on mortality: data from an international consortium of arthroplasty registries. (external link)
• Alf Inge Hellevik; Marianne Bakke Johnsen; Arnulf Langhammer et al. (2017). Incidence of total hip or knee replacement due to osteoarthritis in relation to thyroid function: a prospective cohort study (The Nord-Trøndelag Health Study). (external link)
• Daniel Hoseth Nilsen; Ove Nord Furnes; Gard Kroken et al. (2022). Risk of total hip arthroplasty after elite sport: Linking 3304 former world-class athletes with the Norwegian Arthroplasty Register. (external link)
• G Tsikandylakis; Johan Kärrholm; Nils P. Hailer et al. (2018). No increase in survival for 36-mm versus 32-mm femoral heads in metal-on-polyethylene THA: A registry study.. (external link)
• Liza N. Van Steenbergen; Keijo Mäkelä; Johan Kärrholm et al. (2020). Total hip arthroplasties in the Dutch Arthroplasty Register (LROI) and the Nordic Arthroplasty Register Association (NARA): comparison of patient and procedure characteristics in 475,685 cases. (external link)
• Eva Dybvik; Ove Nord Furnes; Sophie D. Fosså et al. (2009). Long-term risk of receiving a total hip replacement in cancer patients. (external link)
• Anders Myhre Refsum; Uy Viet Nguyen; Jan Erik Gjertsen et al. (2019). Cementing technique for primary knee arthroplasty: a scoping review. (external link)
• Marianne Bakke Johnsen; Alf Inge Hellevik; Valborg Baste et al. (2016). Leisure time physical activity and the risk of hip or knee replacement due to primary osteoarthritis: A population based cohort study (The HUNT Study). (external link)
• Turid Rognsvåg; Ingrid Kismul Nordmo; Ingvild Buset Bergvad et al. (2024). Digital health literacy in Norwegian patients with hip and knee arthroplasty: normative data from a cross-sectional study. (external link)
• Helge Wangen; Leif Ivar Havelin; Anne Marie Fenstad et al. (2017). Reverse hybrid total hip arthroplasty: Results from the Nordic Arthroplasty Register Association (NARA). (external link)
• Thomas Birkenes; Ove Nord Furnes; Stein Håkon Låstad Lygre et al. (2024). Long-Term Outcomes of Arthroscopically Verified Focal Cartilage Lesions in the Knee: A 19-Year Multicenter Follow-up with Patient-Reported Outcomes. (external link)
• Geir Hallan; Birgitte Espehaug; Ove Furnes et al. (2012). Is there still a place for the cemented titanium femoral stem? 10,108 cases from the Norwegian Arthroplasty Register. (external link)
• Øystein Birkeland; Birgitte Espehaug; Leif Ivar Havelin et al. (2017). Bone cement product and failure in total knee arthroplasty : A follow-up study of 26,147 knee replacements between 1997 and 2013 in Norway. (external link)
• Aleksei Tiulpin; Simo Saarakkala; Alexander Mathiessen et al. (2022). Predicting total knee arthroplasty from ultrasonography using machine learning. (external link)
• Per-Erik Johanson; Ove Furnes; Leif Ivar Havelin et al. (2017). Outcome in design-specific comparisons between highly crosslinked and conventional polyethylene in total hip arthroplasty: 163,368 hip replacements in the Nordic Arthroplasty Register Association database with 5?11 years of follow-up. (external link)
• Peter L Lewis; Francois Tudor; Michelle Lorimer et al. (2020). Short-term revision risk of patellofemoral arthroplasty is high: An analysis from eight large arthroplasty registries. (external link)
• Geir Hallan; Anne Marie Fenstad; Ove Furnes (2020). What is the frequency of fracture of ceramic components in THA? Results from the Norwegian arthroplasty register from 1997 to 2017. (external link)
• Frank-David Øhrn; Øystein Gøthesen; Stein Håkon Låstad Lygre et al. (2020). Decreased survival of medial pivot designs compared with cruciate-retaining designs in TKA without patellar resurfacing.. (external link)
• Øystein Gøthesen; Birgitte Espehaug; Leif Ivar Havelin et al. (2013). Survival rates and causes of revision in cemented primary total knee replacement: A report from the Norwegian Arthroplasty Register 1994-2009. (external link)
• Håvard Dale; Sjur Børsheim; Torbjørn Kristensen et al. (2019). Perioperative, short, and long-term mortality related to fixation in primary total hip arthroplasty: a study of 79,557 patients in the Norwegian Arthroplasty Register. (external link)
• Yngvar Krukhaug; Stein Atle Lie; Leif Ivar Havelin et al. (2011). Results of 189 wrist replacements A report from the Norwegian Arthroplasty Register. (external link)
• Øystein Skåden; Ove Nord Furnes; Stein Håkon Låstad Lygre et al. (2025). Radiostereometric measurement of implant migration in robotically assisted vs conventional bi-cruciate stabilized cemented total knee arthroplasty: secondary analysis of a randomized controlled trial. (external link)
• Ove Furnes (2017). Fibrose i kneleddet.. (external link)
• Mika J Niemeläinen; Keijo T. Mäkelä; Otto Robertsson et al. (2020). The effect of fixation type on the survivorship of contemporary total knee arthroplasty in patients younger than 65 years of age: a register-based study of 115,177 knees in the Nordic arthroplasty register association (NARA) 2000-2016.. (external link)
• G Tsikandylakis; Johan Kärrholm; Geir Hallan et al. (2020). Is there a reduction in risk of revision when 36-mm heads instead of 32-mm are used in total hip arthroplasty for patients with proximal femur fractures?. (external link)
• Odd Magne Hals; Anne Marie Fenstad; Ove Nord Furnes et al. (2024). Holdninger til fysisk aktivitet hos personer i Norge med primær totalprotese i kne eller hofte: En nasjonal spørreundersøkelse. (external link)
• HILDE APOLD; Haakon E Meyer; Lars Nordsletten et al. (2014). Risk factors for knee replacement due to primary osteoarthritis, a population based, prospective cohort study of 315,495 individuals. (external link)
• Sunniva Leer-Salvesen; Lars B. Engesæter; Eva Hansen Dybvik et al. (2019). Does time from fracture to surgery affect mortality and intraoperative medical complications for hip fracture patients?. (external link)
• Leif Ivar Havelin; Otto Robertsson; Anne Marie Fenstad et al. (2011). A Scandinavian Experience of Register Collaboration: The Nordic Arthroplasty Register Association (NARA). (external link)
• Stein Håkon Lygre; Birgitte Espehaug; Leif Ivar Havelin et al. (2010). Does patella resurfacing really matter? Pain and function in 972 patients after primary total knee arthroplasty An observational study from the Norwegian Arthroplasty Register. (external link)
• Thomas Kadar; Geir Hallan; Arild Aamodt et al. (2011). Wear and migration of highly cross-linked and conventional cemented polyethylene cups with cobalt chrome or Oxinium femoral heads: A randomized radiostereometric study of 150 patients. (external link)
• Tesfaye Hordofa Leta; Stein Atle Lie; Anne Marie Fenstad et al. (2024). Periprosthetic Joint Infection After Total Knee Arthroplasty With or Without Antibiotic Bone Cement. (external link)
• Maren Falch Lindberg; Arild Aamodt; Mona Badawy et al. (2021). The effectiveness of exercise therapy and education plus cognitive behavioral therapy, alone or in combination with total knee arthroplasty in patients with knee osteoarthritis – study protocol for the MultiKnee trial. (external link)
• Gro Sævik Dyrhovden; Øystein Johannes Gøthesen; Stein Håkon Låstad Lygre et al. (2013). Is the use of computer navigation in total knee arthroplasty improving implant positioning and function? A comparative study of 198 knees operated at a Norwegian district hospital. (external link)
• Tero Irmola; Ville Ponkilainen; Keijo T. Mäkelä et al. (2022). Impact of the Nordic Arthroplasty Register Association (NARA) collaboration on demographics, methods and revision rates in knee arthroplasty: a register-based study from NARA 2000–2017. (external link)
• Marianne Bakke Johnsen; Gunnhild Åberge Vie; Bendik K S Winsvold et al. (2017). The causal role of smoking on the risk of hip or knee replacement due to primary osteoarthritis: a Mendelian randomisation analysis of the HUNT study. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Johannes Cornelis Schrama et al. (2019). Outcome of revision surgery for infection after total knee arthroplasty: Results of 3 surgical strategies. (external link)
• Jan-Erik Gjertsen; Jonas Fevang; Tarjei Vinje et al. (2006). Nasjonalt hoftebruddregister. (external link)
• Mona Badawy; Anne Marie Fenstad; Christoffer Bartz-Johannessen et al. (2017). Hospital volume and the risk of revision in Oxford unicompartmental knee arthroplasty in the Nordic countries -an observational study of 14,496 cases. (external link)
• Dennis Vinther; Aurelie Mailhac; Ina Trolle Andersen et al. (2022). Association between duration of anticoagulant thromboprophylaxis and revision rate in primary total hip arthroplasty: a Danish and Norwegian nationwide cohort study. (external link)
• Thea Emily Benson; Ina Trolle Andersen; Søren Overgaard et al. (2022). Association of perioperative thromboprophylaxis on revision rate due to infection and aseptic loosening in primary total hip arthroplasty - new evidence from the Nordic Arthroplasty Registry Association (NARA). (external link)
• Ilana N. Ackerman; Megan A. Bohensky; Richard de Steiger et al. (2017). Lifetime risk of primary total hip replacement surgery for osteoarthritis from 2003 to 2013: a multinational analysis using national registry data. (external link)
• Kirill Gromov; Anders Troelsen; Maziar Modaddes et al. (2019). Varying but reduced use of postoperative mobilization restrictions after primary total hip arthroplasty in Nordic countries: a questionnaire-based study. (external link)
• Stein Atle Lie; Anne Marie Fenstad; Stein Håkon Låstad Lygre et al. (2022). Kaplan-Meier and Cox Regression Are Preferable for the Analysis of Time to Revision of Joint Arthroplasty: Thirty-One Years of Follow-up for Cemented and Uncemented THAs Inserted from 1987 to 2000 in the Norwegian Arthroplasty Register. (external link)
• Torbjørn Kristensen; Eva Hansen Dybvik; Målfrid Holen Kristoffersen et al. (2020). Cemented or uncemented hemiarthroplasty for femoral neck fracture? Data from the Norwegian Hip Fracture Register. (external link)
• Peder Svenkerud Thoen; Stein Håkon Låstad Lygre; Lars Nordsletten et al. (2022). Risk factors for revision surgery due to dislocation within 1 year after 111,711 primary total hip arthroplasties from 2005 to 2019: a study from the Norwegian Arthroplasty Register. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Arne Kr Skredderstuen et al. (2015). Secondary patella resurfacing in painful non-resurfaced total knee arthroplasties: A study of survival and clinical outcome from the Norwegian Arthroplasty Register (1994–2011). (external link)
• Mads Sundet; Eva Hansen Dybvik; Ove Nord Furnes et al. (2023). Poor survivorship of total ankle replacements. 1368 cases from the period 1994–2021 in the Norwegian arthroplasty register. (external link)
• Oskari Pakarinen; Ville Ponkilainen; Claus Varnum et al. (2024). Choice of Bearings Influences the Implant Survival of Total Hip Arthroplasty in Patients Who Have Osteoarthritis Aged 55 Years or More: Results of 158,044 Patients From the Nordic Arthroplasty Register Association From 2005 to 2017. (external link)
• Håkon Langvatn; Johannes Cornelis Schrama; Guangyu Cao et al. (2020). Operating room ventilation and the risk of revision due to infection after total hip arthroplasty: assessment of validated data in the Norwegian Arthroplasty Register. (external link)
• Bjørg Tilde Svanes Fevang; Stein Atle Lie; Leif Ivar Havelin et al. (2010). Improved results of primary total hip replacement. (external link)
• Stein Atle Lie; Geir Hallan; Ove Furnes et al. (2007). Isolated acetabular liner exchange compared With Complete acetabular Component revision in revision of primary uncemented acetabular components: a study of 1649 revisions from the Norwegian arthroplasty register.. (external link)
• Otto Robertsson; Svetlana Bizjajeva; Anne Marie Fenstad et al. (2010). Knee arthroplasty in Denmark, Norway and Sweden A pilot study from the Nordic Arthroplasty Register Association. (external link)
• Liv Inger Strand; Aarid Liland Olsen; Heid Nygard et al. (2016). Basic body awareness therapy and patient education in hip osteoarthritis: A multiple case study. (external link)
• Ove Furnes; Birgitte Espehaug; Leif Ivar Havelin (2002). Luxation of hip prosthesis. (external link)
• Leif Ivar Havelin; Lars B. Engesæter; Birgitte Espehaug et al. (2000). The Norwegian arthroplasty register. 11 years and 73,000 arthroplasties.. (external link)
• Karin Magnusson; Katrina J. Scurrah; Eivind Ystrøm et al. (2016). Genetic factors contribute more to hip than knee surgery due to osteoarthritis - a population-based twin registry study of joint arthroplasty. (external link)
• N.S Kalson; L.A Borthwick; DA Mann et al. (2016). International consensus on the definition and classification of fibrosis of the knee joint.. (external link)
• Gunnar Petursson; Anne Marie Fenstad; Øystein Gøthesen et al. (2016). Similar migration in computer-assisted and conventional total knee arthroplasty: A multicenter, parallel-group, randomized controlled trial involving 54 patients. (external link)
• Ines Kutzner; Geir Halland; Paul Johan Høl et al. (2017). Early aseptic loosening of a mobile-bearing total knee replacement: A case-control study with retrieval analyses. (external link)
• Ilana N Ackerman; Megan A Bohensky; Richard de Steiger et al. (2016). Substantial rise in the lifetime risk of primary total knee replacement surgery for osteoarthritis from 2003 to 2013: an international, population-level analysis.. (external link)
• Ove Furnes; Elizabeth W. Paxton; Guy Cafri et al. (2014). Distributed analysis of hip implants using six national and regional registries: Comparing metal-on-metal with metal-on-highly cross-linked polyethylene bearings in cementless total hip arthroplasty in young patients. (external link)
• Per-Henrik Randsborg; Tommy Frøseth Aae; Ida Rashida Khan Bukholm et al. (2021). Compensation claims after knee arthroplasty surgery in Norway 2008–2018. (external link)
• Mikko S. Venäläinen; Valtteri J. Panula; Antti P. Eskelinen et al. (2024). Prediction of Early Adverse Events After THA: A Comparison of Different Machine-Learning Strategies Based on 262,356 Observations From the Nordic Arthroplasty Register Association (NARA) Dataset. (external link)
• Mona Badawy; Anne Marie Fenstad; Ove Furnes (2019). Primary constrained and hinged total knee arthroplasty: 2- and 5-year revision risk compared with unconstrained total knee arthroplasty: a report on 401 cases from the Norwegian Arthroplasty Register 1994-2017. (external link)
• Geir Hallan; Arild Aamodt; Ove Furnes et al. (2006). Palamed G compared with Palacos R with gentamicin in Charnley total hip replacement. (external link)
• Ove Furnes; A. Bøe; Einar Sudmann (1996). Lumbale skiveprolapser hos ungdom.. (external link)
• Håvard Dale; Inge Skråmm; Hege Line Magnussen Løwer et al. (2011). Infection after primary hip arthroplasty: a comparison of 3 Norwegian health registers. (external link)
• Hilde Apold; Haakon E Meyer; Lars Nordsletten et al. (2014). Weight gain and the risk of knee replacement due to primary osteoarthritis: a population based, prospective cohort study of 225,908 individuals. (external link)
• Mika Junnila; Inari Laaksonen; Antti Eskelinen et al. (2016). Implant survival of the most common cemented total hip devices from the Nordic Arthroplasty Register Association database. (external link)
• Gro Sævik Dyrhovden; Anne Marie Fenstad; Ove Furnes et al. (2016). Survivorship and relative risk of revision in computer-navigated versus conventional total knee replacement at 8-year follow-up: A study of 23,684 cases reported to the Norwegian Arthroplasty Register, 2005?2014. (external link)
• Jan Erik Gjertsen; Anne Marie Fenstad; Olof Leonardsson et al. (2014). Hemiarthroplasties after hip fractures in Norway and Sweden: A collaboration between the Norwegian and Swedish national registries. (external link)
• Dennis Vinther; Reimar W. Thomsen; Ove Nord Furnes et al. (2024). Impact of diabetes on the risk of subsequent fractures in 92,600 patients with an incident hip fracture: A Danish nationwide cohort study 2004–2018. (external link)
• Michelle Khan; Stein Håkon Låstad Lygre; Mona Badawy et al. (2025). Association of tourniquet use on short-term implant survival after primary total knee arthroplasty: a study of 24,249 knees from the Norwegian Arthroplasty Register. (external link)
• Ane Lyseid Authen; Eva Hansen Dybvik; Ove Furnes et al. (2018). Surgeon's experience level and risk of reoperation after hip fracture surgery: an observational study on 30,945 patients in the Norwegian Hip Fracture Register 2011-2015. (external link)
• Lars B. Engesæter; Ove Nord Furnes; Leif Ivar Havelin et al. (2007). Survival of total hip arthroplasties after DDH in the Norwegian Arthroplasty Register 1987-2004. (external link)
• Eva Natalia Glassou; T. B. Hansen; K. Mäkelä et al. (2015). Association between hospital procedure volume and risk of revisjon after total hip arthroplasty: a population-based study within the Nordic arthroplasty register association database.. (external link)
• Jonas Ranstam; Johan Kärrholm; Pekka Pulkkinen et al. (2011). Statistical analysis of arthroplasty data : II. Guidelines. (external link)
• Olav Lutro; Marianne Bollestad; Tesfaye Hordofa Leta et al. (2025). How many doses and what type of antibiotic should be used as systemic antibiotic prophylaxis in primary hip and knee arthroplasty? A register-based study on 301,204 primary total and hemi-hip and total knee arthroplasties in Norway 2005–2023. (external link)
• Thomas Kadar; Eva Dybvik; Geir Hallan et al. (2012). Head material influences survival of a cemented total hip prosthesis in the Norwegian Arthroplasty Register. (external link)
• Marianne H Gillam; Stein Atle Lie; Amy Salter et al. (2012). The progression of end-stage osteoarthritis: analysis of data from the Australian and Norwegian joint replacement registries using a multi-state model. (external link)
• Tero Irmola; Ville Ponkilainen; Keijo Mäkelä et al. (2020). Association between fixation type and revision risk in total knee arthroplasty patients aged 65 years and older: a cohort study of 265,877 patients from the Nordic Arthroplasty Register Association 2000–2016. (external link)
• Yngvar Krukhaug; Stein Atle Lie; Leif Ivar Havelin et al. (2014). The results of 479 thumb carpometacarpal joint replacements reported in the Norwegian Arthroplasty Register. (external link)
• Rasmus Tyrsted Mikkelsen; Søren Overgaard; Alma B. Pedersen et al. (2023). Does choice of bearings influence the survival of cement-less total hip arthroplasty in patients aged 20–55 years? Comparison of 21,594 patients reported to the Nordic Arthroplasty Register Association dataset 2005–2017. (external link)
• Bjørg Tilde Svanes Fevang; Stein Atle Lie; Leif Ivar Havelin et al. (2007). 257 ankle arthroplasties performed in Norway between 1994 and 2005. (external link)
• Bjørg Tilde Svanes Fevang; Stein Atle Lie; Leif Ivar Havelin et al. (2007). Reduction in orthopedic surgery among patients with chronic inflammatory joint disease in Norway, 1994-2004. (external link)
• Jonas Ranstam; Johan Kärrholm; Pekka Pulkkinen et al. (2011). Statistical analysis of arthroplasty data : I. Introduction and background. (external link)
• Øystein Johannes Gøthesen; Birgitte Espehaug; Leif Ivar Havelin et al. (2011). Short-term outcome of 1,465 computer-navigated primary total knee replacements 2005--2008. (external link)
• Bjørg Tilde Svanes Fevang; Stein Atle Lie; Leif Ivar Havelin et al. (2009). Results after 562 total elbow replacements: A report from the Norwegian Arthroplasty Register. (external link)
• Jan-Erik Gjertsen; Stein Atle Lie; Tarjei Vinje et al. (2012). More re-operations after uncemented than cemented hemiarthroplasty used in the treatment of displaced fractures of the femoral neck: an observational study of 11,116 hemiarthroplasties from a national register. (external link)
• Bjørg-Tilde Fevang; Stein Håkon Låstad Lygre; Glenn Bertelsen et al. (2013). Pain and function in eight hundred and fifty nine patients comparing shoulder hemiprostheses, resurfacing prostheses, reversed total and conventional total prostheses. (external link)
• Jan-Erik Gjertsen; Daniel Hoseth Nilsen; Ove Nord Furnes et al. (2024). Promoting cemented fixation of the femoral stem in elderly female hip arthroplasty patients and elderly hip fracture patients: a retrospective cohort study from the Norwegian Arthroplasty Register and the Norwegian Hip Fracture Register. (external link)
• Håkon Greve Johannessen; Geir Hallan; Thomas Istvan Edelsvärd Kadar et al. (2024). Polyethylene wear and cup migration of cemented total hip arthroplasty with femoral heads made of oxidized zirconium, steel, or cobalt chromium: a 10-year secondary analysis from a randomized trial using radiostereometry. (external link)

Conference poster

• Ingvild Buset Bergvad; Caryl Gay; Arild Aamodt et al. (2025). Factors associated with physical activity in men and women with severe knee OA. (external link)
• Nina Jullum Kise; Siri Eliassen; Ove Nord Furnes et al. (2025). The influence of fear avoidance and pain catastrophizing on knee awareness and quality of life in osteoarthritis patients. (external link)
• Unni Olsen; Maren Falch Lindberg; Christopher James Rose et al. (2023). BMI, Physical Function And Osteoarthritis Severity Correlate With Physical Function One Year After Total Knee Arthroplasty: A Systematic Review And Meta-Analysis. (external link)
• Thomas Birkenes; Ove Nord Furnes; Stein Håkon Låstad Lygre et al. (2022). The long-term risk of knee arthroplasty after arthroscopically verified focal cartilage lesions in the knee. (external link)
• Maren Falch Lindberg; Turid Rognsvåg; Mona Badawy et al. (2019). Optimal behandling av artrosepasienter - en feasibilitystudie (MultiKnee trial). (external link)
• Michelle Khan; Stein Håkon Låstad Lygre; Paul Johan Høl et al. (2023). Does precoating of the NexGen Option tibial component lower the risk of loosening? 10 years follow up from the Norwegian Arthroplasty Register 2012-2021. (external link)
• Mona Badawy; Birgitte Espehaug; Kari Indrekvam et al. (2012). Revision rate is influenced by hospital and surgeon volume in total knee arthroplasty. (external link)
• Aarid Liland Olsen; Liv Inger Strand; Liv Heide Magnussen et al. (2020). Patient Education and Basic Body Awareness Therapy versus Patient Education only in people with hip Osteoarthritis. A randomized controlled trial.. (external link)
• Thomas Kadar; Geir Hallan; Arild Aamodt et al. (2011). A randomized study on migration of the Spectron EF and the Charnley flanged 40 cemented femoral components using radiostereometric analysis at 2 years. (external link)
• Thomas Kadar; Geir Hallan; Arild Aamodt et al. (2010). Wear of highly cross-linked and conventional ultra-high molecular weight semented polyethylene cups with oxidized zirconium (Oxinium) or Cobalt Chrome femoral heads. A randomized study of 150 hips using radiostereometric analysis. (external link)
• Turid Rognsvåg; Ingvild Buset Bergvad; Ove Nord Furnes et al. (2022). Effekt av trening, undervisning og kognitiv adferdsterapi for artrosepasienter med eller uten totalprotese i kne: En randomisert feasibility studie. (external link)
• Turid Rognsvåg; Maren Falch Lindberg; Petter Chr. Borchgrevink et al. (2018). Multi-Knee Trial. En feasibilty-studie av en intervensjon for artrosepasienter med økt risiko for langvarige smerter etter operasjon med kneprotese. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Arne Kr Skredderstuen et al. (2015). Failure of revision total knee arthroplasties: a study of 1016 revision knee prostheses from the Norwegian Arthroplasty Register 1994-2011.. (external link)
• Maren Falch Lindberg; Arild Aamodt; Mona Badawy et al. (2024). Education, exercise therapy and iCBT for patients with knee osteoarthritis - the MultiKnee trial. (external link)
• Turid Rognsvåg; Ingrid Kismul Nordmo; Ingvild Buset Bergvad et al. (2024). Digital health literacy in patients undergoing hip and knee arthroplasty surgery. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Arne Kr Skredderstuen et al. (2014). Failure of revision total knee arthroplasties: a study of 1016 revision knee prostheses from the Norwegian Arthroplasty Register 1994-2011.. (external link)
• Håkon Greve Johannessen; Thomas Kadar; Geir Hallan et al. (2022). Polyethylene Wear In Total Hip Arthroplasty; Comparing Oxinium And CoCr Femoral Heads Using Radiostereometry With 10 Years Follow-Up. (external link)
• Michelle Khan; Irene Ohlen Moldestad; Peter Ellison et al. (2022). Initial Stability Of Surface vs Full Cemented Tibial Components Under Cyclic Loading. (external link)

Academic literature review

• Unni Solveig Johansen Olsen; Maren Falch Lindberg; Eva Marie-Louise Denison et al. (2020). Predictors of chronic pain and level of physical function in total knee arthroplasty: a protocol for a systematic review and meta-analysis. (external link)
• Jeppe Rasmussen; Bo S Olsen; Bjørg-Tilde Fevang et al. (2012). A review of national shoulder and elbow joint replacement registries. (external link)
• Eva Hansen Dybvik; Ove Furnes; Leif Ivar Havelin et al. (2020). A prospective study on cancer risk after total hip replacements for 41,402 patients linked to the Cancer registry of Norway. (external link)
• Tesfaye Hordofa Leta; Jan-Erik Gjertsen; Håvard Dale et al. (2021). Antibiotic-loaded bone cement in prevention of periprosthetic joint infections in primary total knee arthroplasty: A register-based multicentre randomised controlled non-inferiority trial (ALBA trial). (external link)
• Esa Jamsen; Ove Furnes; Lars B. Engesæter et al. (2010). Prevention of deep infection in joint replacement surgery A review. (external link)
• Unni Olsen; Maren Falch Lindberg; Christopher James Rose et al. (2023). Factors correlated with pain after total knee arthroplasty: A systematic review and meta-analysis. (external link)
• Knut Erik Mjaaland; Svein Svenningsen; Anne Marie Fenstad et al. (2017). Implant survival after minimally invasive anterior or anterolateral vs. conventional posterior or direct lateral approach. (external link)
• Unni Olsen; Maren Falch Lindberg; Christopher James Rose et al. (2022). Factors Correlated with Physical Function 1 Year after Total Knee Arthroplasty in Patients with Knee Osteoarthritis: A Systematic Review and Meta-analysis. (external link)

Letter to the editor

• Stein Atle Lie; Leif Ivar Havelin; Anne Marie Fenstad et al. (2014). Re: a statistical analysis of ankle prosthesis from the Norwegian Arthroplasty Register. (external link)
• Yngvar Krukhaug; Stein Atle Lie; Leif Ivar Havelin et al. (2012). Results of 189 wrist replacements. (external link)
• Torbjørn Kristensen; Eva Hansen Dybvik; Målfrid Holen Kristoffersen et al. (2020). Reply to the Letter to the Editor: Cemented or uncemented Hemiarthroplasty for femoral neck fracture? Data from the Norwegian Hip Fracture Register. (external link)
• Jan-Erik Gjertsen; Stein Atle Lie; Tarjei Vinje et al. (2013). Authors' reply Cobb correspondence re: J-E. Gjertsen, S. A. Lie, T. Vinje, et al. More re-operations after uncemented than cemented hemiarthroplasty used in the treatment of displaced fractures of the femoral neck: An observational study of 11 116 hemiarthroplasties from a national register. J Bone Joint Surg [Br] 2012;94-B:1113-1119. (external link)
• Lars B. Engesæter; Leif Ivar Havelin; Ove Furnes (2012). Uavhengige forskningsmiljøer finnes!. (external link)

Conference lecture

• Øystein Johannes Gøthesen; Birgitte Espehaug; Stein Håkon Lygre et al. (2011). Implantatoverlevelse og revisjonsårsaker ved primær ”mobile bearing”, ”fixed modular bearing” og ”fixed non-modular bearing” totalprotese i kne. En rapport fra Nasjonalt register for leddproteser. (external link)
• Peter Ellison; Paul Johan Høl; Geir Hallan et al. (2011). Et nasjonalt analysesenter for uthentetede ortopediske implantater. (external link)
• Peter Ellison; Paul Johan Høl; Geir Hallan et al. (2011). Økt løsning av sementert Titan hofteprotese – En studie på uthentet materiale. (external link)
• Michelle Khan; Stein Håkon Låstad Lygre; Geir Hallan et al. (2023). Bruk av blodtomhet ved totalprotese i kne- 3 års oppfølging (2018-2021) med data fra Nasjonalt register for leddproteser. (external link)
• Mona Badawy; Birgitte Espehaug; Kari Indrekvam et al. (2012). Revision rate is influenced by hospital and surgeon volume in Unicompartmental Knee Arthroplasty. (external link)
• Mona Badawy; Birgitte Espehaug; Kari Indrekvam et al. (2012). Revision rate is influenced by hospital and surgeon volume in total knee arthroplasty. (external link)
• Håvard Visnes; Tone Gifstad; Andreas Persson et al. (2021). Pasienter med fremre korsbåndrekonstruksjon har øket risiko for kneprotese etter 15 års oppfølging. (external link)
• Turid Rognsvåg; Maren Falch Lindberg; Anners Lerdal et al. (2022). Development of an internet-delivered cognitive behavioral therapy program for use in combination with exercise therapy and education by patients at increased risk of chronic pain following total knee arthroplasty. (external link)
• Thomas Kadar; Geir Hallan; Arild Aamodt et al. (2010). A randomized study of the Spectron EF and the Charnley flanged 40 cemented femoral components. (external link)
• Thomas Birkenes; Ove Nord Furnes; Asbjørn Årøen et al. (2021). Langtidsresultater etter bruskkirurgi i Norge - PROM hos pasienter utensenere kneprotese eller osteotomi. (external link)
• Thomas Kadar; Leif Ivar Havelin; Kari Indrekvam et al. (2011). Betydningen av sementerte koppers inklinasjonsvinkel på plastslitasje og koppmigrasjon. En prospektiv randomisert studie. (external link)
• Mona Badawy; Birgitte Espehaug; Kari Indrekvam et al. (2011). Er risikoen for revisjon større ved lavt sykehus og kirurgvolum ved unicondylære proteser. (external link)
• Mona Badawy; Birgitte Espehaug; Kari Indrekvam et al. (2010). Operasjonsvolum av totale kneproteser i Nore 1994- 2009. (external link)
• Mona Badawy; Birgitte Espehaug; Kari Indrekvam et al. (2011). Impact of procedure volume on the results of total knee arthroplasty. (external link)
• Anne Marie Fenstad; Ove Furnes; Geir Hallan et al. (2013). Using the Norwegian arthroplasty register to generate a DNA biobank. (external link)
• Michelle Khan; Jan-Erik Gjertsen; Anders Myhre Refsum et al. (2020). En spørreundersøkelse om sementeringsteknikker som brukes ved total kneprotesekirurgi ved norske sykehus. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Arne Kr Skredderstuen et al. (2015). Sammenligning av 768 total- og 578 uni-kneproteser reviderte til total kneproteser fra Nasjonalt Register for Leddproteser (1994-2011). (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Arne Kr Skredderstuen et al. (2013). Overlevelse av revisjonskneproteser: En observasjonsstudie basert på 2549 revisjonskneoperasjoner rapportert til nasjonalt register for leddproteser (1994-2011).. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Arne Kr Skredderstuen et al. (2014). Revisjon av total kneprotese uten patellakomponent med kun innsetting av patellakomponent.. (external link)
• Ines Kutzner; Paul Johan Høl; Geir Hallan et al. (2014). Early aseptic loosening of a mobile-bearing total knee replacement – A retrieval analysis. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Pål Håvding et al. (2017). Resultater ved revisjon for infisert kneprotese. En observasjons studie fra Nasjonalt Register for Leddproteser (1994-2016).. (external link)
• Paul Johan Høl; Peter John Ellison; Susann Wolf et al. (2019). Mekanismer for aseptisk løsning av sementert Spectron EF hoftestamme med Reflection kopp - en retrievalstudie. (external link)
• Ines Kutzner; Paul Johan Høl; Geir Hallan et al. (2014). Early aseptic loosening of a mobile-bearing total knee replacement – a retrieval analysis. (external link)
• Peter Ellison; Paul Johan Høl; Geir Hallan et al. (2012). The Titan hip stem problem - a retrieval study. (external link)
• Thomas Birkenes; Ove Nord Furnes; Stein Håkon Låstad Lygre et al. (2023). Tidligere fokal bruskskade er assosiert med dårligere pasientrapportert resultat etter kneprotese. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Pål Høvding et al. (2018). Revision of infected total knee arthroplasty: Do surgical strategies matter?. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Pål Høvding et al. (2018). Outcome of revision surgery for infected total knee arthroplasty: Do surgical strategies matter?. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Pål Høvding et al. (2018). Result of revision surgery for infected total knee arthroplasty. Do surgical strategies matter?. (external link)
• Gunnar Petursson; Øystein Gøthesen; Anne Marie Fenstad et al. (2014). Computernavigasjon vs konvensjonell teknikk ved kneprotesekirurgi. En prospektiv, randomisert, blindet RSA-studie. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Arne Kr Skredderstuen et al. (2016). The outcome of unicompartmental knee arthroplasties after aseptic revision into total knee arthroplasties. A comparative study of 768 total knees and 578 uni knees revised to total knees reported to Norwegian Arthroplasty Register (1994-2011).. (external link)
• Tesfaye Hordofa Leta; Arne Kr Skredderstuen; Stein Håkon Låstad Lygre et al. (2015). The Outcome of unicompartmental knee arthroplasties after aseptic revision into total knee arthroplasties. A comparative study of 768 total and 578 uni-knees revised to total knees reported to the Norwegian Arthroplasty Register (1994-2011).. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Arne Kr Skredderstuen et al. (2015). Addition of patella Component in painful non-resurfaced TKAs; does it helps?. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Arne Kr Skredderstuen et al. (2015). The outcome of unicompartmental knee arthroplastis after aseptic revision into total knee arthroplasties.. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Arne Kr Skredderstuen et al. (2016). The outcome of unicompartmental knee arthroplasties after aseptic revision into total knee arthroplasties. A comparative study of 768 total knees and 578 uni knees revised to total knees reported to Norwegian Arthroplasty Register (1994-2011.. (external link)
• Tesfaye Hordofa Leta; Stein Håkon Låstad Lygre; Arne Kr Skredderstuen et al. (2016). The outcome of unicompartmental knee arthroplasties after aseptic revision into total knee arthroplasties. A comparative study of 768 total knees and 578 uni knees revised to total knees reported to Norwegian Arthroplasty Register (1994-2011). (external link)
• Aksel Paulsen; Ane Djuv; Jarle Ludvigsen et al. (2024). Digital pasientstyrt klinisk proteseoppfølgning med automatisert dataoverføring til Nasjonalt Register for Leddproteser. (external link)
• Håvard Visnes; Tone Gifstad; Andreas Persson et al. (2021). ACL reconstruction patients have increased risk of knee arthroplasty - data from the Norwegian Knee Ligament Register and the Norwegian Arthroplasty Register from 2004-2019. (external link)
• Håkon Greve Johannessen; Thomas Kadar; Geir Hallan et al. (2021). Polyethylene wear in total hip arthroplasty; comparing Oxinium and CoCr femoral heads using radiostereometry with 10 years follow-up. (external link)
• Paul Johan Høl; Geir Hallan; Ove Nord Furnes et al. (2020). Metallionenivåer i blod etter 10 år med hofteproteser med ulike hodematerialer. (external link)

Media interview

• Ove Nord Furnes; Tesfaye Hordofa Leta; Øystein Johannes Gøthesen (2021). ALBA-studien. (external link)

Conference abstract

• Helena Kames Kjeldgaard; Kristin Holvik; Anne Marie Fenstad et al. (2021). The Impact of Total Hip Replacements on Hip Fracture Incidence in the Norwegian Population. A NOREPOS Study. (external link)
• Helena Kames Kjeldgaard; Haakon Eduard Meyer; Martin O’Flaherty et al. (2022). OP93 Impact of total hip replacements on the incidence of hip fractures in Norway during 1999–2019. A NOREPOS study. (external link)

Lecture

• Einar Johan Braém Amlie; Leif Ivar Havelin; Ove Furnes et al. (2012). Pasientrapportert resultatet etter innsatt primær hofteprotese med anterolateral/Fremre, lateral og bakre tilgang. (external link)

Academic book chapter

• Håvard Visnes; Tone Gifstad; Andreas Persson et al. (2021). Pasienter med fremre korsbåndrekonstruksjon har øket risiko for kneprotese etter 15 års oppfølging. (external link)
• Thomas Birkenes; Ove Nord Furnes; Asbjørn Årøen et al. (2021). Langtidsresultater etter bruskkirurgi i Norge - PROM hos pasienter uten senere kneprotese eller osteotomi. (external link)

Journal corrigendum

• Alf Inge Hellevik; Lars Nordsletten; Marianne Bakke Johnsen et al. (2017). Corrigendum to “Age of menarche is associated with knee joint replacement due to primary osteoarthritis (The HUNT Study and the Norwegian Arthroplasty Register)” [Osteoarthr Cartil 25 (2017) 1654–1662] (S1063458417310609) (10.1016/j.joca.2017.06.010)). (external link)

Media feature article

• Paul Johan Høl; Ove Furnes; Geir Hallan et al. (2019). Kontrollen av medisinske implantater kan bli bedre. (external link)

Research report

• Unni Solveig Johansen Olsen; Anners Lerdal; Arild Aamodt et al. (2018). Preoperative and intraoperative predictors of persistent postoperative pain and impaired physical function in total knee arthroplasty - a systematic review of prognostic studies. (external link)

Editorial/Leader article

• Ove Furnes (2018). International registry collaboration and statistical approaches. (external link)
• Nils P. Hailer; Ove Nord Furnes; Keijo Mäkelä et al. (2023). Register-based randomized trials: the new power-tool in orthopedic research?. (external link)

Doctoral thesis (PhD)

• Tesfaye Hordofa Leta; Ove Furnes; Stein Håkon Låstad Lygre et al. (2017). Revision Knee Arthroplasty in Norway 1994-2011. A register-based study with focus on implant survival, causes and risk of re-revision, pain relief, functional outcome, patient satisfaction, and health related quality of life. (external link)
• Mona Badawy; Ove Furnes (2016). Influence of hospital procedure volume on the risk of revision in knee arthroplasty surgery. (external link)

See a complete overview of publications in NVA.