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A. Fenstad · SciRah

Researcher profile · Semantic Scholar

A. Fenstad

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A. Fenstad — researcher profile on SciRah

h-index: 35
Works: 151
Citations: 4,109

Most-cited papers

Translational genomics of osteoarthritis in 1,962,069 individuals
K. Hatzikotoulas, L. Southam, L. Stefánsdóttir, C. Boer +169 more
2025Nature95 citations Open access
Semantic Scholar
Major Increase in Incidence of Pediatric ACL Reconstructions From 2005 to 2021: A Study From the Norwegian Knee Ligament Register
C. Kooy, R. Jakobsen, A. Fenstad, A. Persson +3 more
2023American Journal of Sports Medicine92 citations Open access
Semantic Scholar
Computer-Assisted Compared with Conventional Total Knee Replacement: A Multicenter Parallel-Group Randomized Controlled Trial
G. Petursson, A. Fenstad, Ø. Gøthesen, Gro S Dyrhovden +4 more
2018Journal of Bone and Joint Surgery. American volume70 citations
Semantic Scholar
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
Silje Marie Melbye, Sofie Cecilia Dietrich Haug, A. Fenstad, O. Furnes +2 more
2021Clinical Orthopaedics and Related Research60 citations Open access
Semantic Scholar
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
H. Dale, Sjur Børsheim, T. Kristensen, A. Fenstad +4 more
2019Acta Orthopaedica55 citations Open access
Semantic Scholar
Outcome of 881 total hip arthroplasties in 747 patients 21 years or younger: data from the Nordic Arthroplasty Register Association (NARA) 1995–2016
V. Halvorsen, A. Fenstad, L. Engesæter, L. Nordsletten +7 more
2019Acta Orthopaedica54 citations Open access
Semantic Scholar
Predicting Anterior Cruciate Ligament Reconstruction Revision
R. K. Martin, S. Wastvedt, Ayoosh Pareek, A. Persson +5 more
2021Journal of Bone and Joint Surgery. American volume51 citations Open access
Semantic Scholar
Machine learning algorithm to predict anterior cruciate ligament revision demonstrates external validity
R. K. Martin, S. Wastvedt, Ayoosh Pareek, A. Persson +6 more
2022Knee Surgery, Sports Traumatology, Arthroscopy50 citations Open access
Semantic Scholar
Similar risk of ACL graft revision for alpine skiers, football and handball players: the graft revision rate is influenced by age and graft choice
A. Ekeland, L. Engebretsen, A. Fenstad, S. Heir
2019British Journal of Sports Medicine47 citations
Semantic Scholar
Reverse shoulder arthroplasty has a higher risk of revision due to infection than anatomical shoulder arthroplasty: 17 730 primary shoulder arthroplasties from the Nordic Arthroplasty Register Association.
Sahar Moeini, J. Rasmussen, Björn Salomonsson, E. Domeij-Arverud +4 more
2019The Bone & Joint Journal42 citations
Semantic Scholar
Cementing technique for primary knee arthroplasty: a scoping review
A. Refsum, U. Nguyen, J. Gjertsen, B. Espehaug +5 more
2019Acta Orthopaedica39 citations Open access
Semantic Scholar
Periprosthetic Joint Infection After Total Knee Arthroplasty With or Without Antibiotic Bone Cement
Tesfaye H. Leta, S. Lie, A. Fenstad, S. Lygre +39 more
2024JAMA Network Open36 citations Open access
Semantic Scholar
The short-term survival of total stemless shoulder arthroplasty for osteoarthritis is comparable to that of total stemmed shoulder arthroplasty: a Nordic Arthroplasty Register Association study.
J. Rasmussen, Jenni Harjula, E. Arverud, R. Hole +5 more
2019Journal of shoulder and elbow surgery36 citations Open access
Semantic Scholar
The benefits of collaboration: the Nordic Arthroplasty Register Association
K. Mäkelä, O. Furnes, G. Hallan, A. Fenstad +13 more
2019EFORT Open Reviews35 citations Open access
Semantic Scholar
Increasing risk of revision due to infection after primary total hip arthroplasty: results from the Nordic Arthroplasty Register Association
H. Dale, A. Fenstad, G. Hallan, S. Overgaard +7 more
2023Acta Orthopaedica33 citations Open access
Semantic Scholar
Incidence and risk factors of intraoperative periprosthetic femoral fractures during primary total hip arthroplasty: 218,423 cases reported to the Norwegian Arthroplasty Register between 1987 and 2020
Heinrich Brüggemann, I. Dalen, L. Bache-Mathiesen, A. Fenstad +2 more
2022Acta Orthopaedica33 citations Open access
Semantic Scholar
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
M. Badawy, A. Fenstad, O. Furnes
2019Acta Orthopaedica33 citations Open access
Semantic Scholar
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)
Tesfaye H. Leta, J. Gjertsen, H. Dale, G. Hallan +22 more
2021BMJ Open28 citations Open access
Semantic Scholar
Perioperative, short-, and long-term mortality related to fixation in primary total hip arthroplasty: a study on 79,557 patients in the Norwegian Arthroplasty Register
H. Dale, Sjur Børsheim, T. Kristensen, A. Fenstad +4 more
2019Acta Orthopaedica26 citations Open access
Semantic Scholar
What Is the Frequency of Fracture of Ceramic Components in THA? Results from the Norwegian Arthroplasty Register from 1997 to 2017.
G. Hallan, A. Fenstad, O. Furnes
2020Clinical Orthopaedics and Related Research24 citations Open access
Semantic Scholar
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
Tesfaye H. Leta, A. Fenstad, S. Lygre, S. Lie +40 more
2023Acta Orthopaedica23 citations Open access
Semantic Scholar
Predicting subjective failure of ACL reconstruction: a machine learning analysis of the Norwegian Knee Ligament Register and patient reported outcomes.
R. K. Martin, S. Wastvedt, Ayoosh Pareek, A. Persson +5 more
2022Journal of ISAKOS Joint Disorders & Orthopaedic Sports Medicine23 citations Open access
Semantic Scholar
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
H. Dale, P. Høvding, Sindre M Tveit, Julie B Graff +9 more
2020Acta Orthopaedica22 citations Open access
Semantic Scholar
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
Tero Irmola, V. Ponkilainen, K. Mäkelä, O. Robertsson +7 more
2020Acta Orthopaedica22 citations Open access
Semantic Scholar
Re-revision Anterior Cruciate Ligament Reconstruction: An Evaluation From the Norwegian Knee Ligament Registry.
Alexander R. Vap, A. Persson, A. Fenstad, G. Moatshe +2 more
2019Arthroscopy: The Journal of Arthroscopy And Related22 citations
Semantic Scholar
Impact of Total Hip Replacements on the Incidence of Hip Fractures in Norway During 1999–2019. A Norwegian Epidemiologic Osteoporosis Studies (NOREPOS) Study
H. Kjeldgaard, H. Meyer, M. O'Flaherty, E. Apalset +10 more
2022medRxiv20 citations Open access
Semantic Scholar
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
Mika J. Niemeläinen, K. Mäkelä, O. Robertsson, A. W-Dahl +6 more
2020Acta Orthopaedica20 citations Open access
Semantic Scholar
Survivorship of modern total hip replacement to 30 years: systematic review, meta-analysis, and extrapolation of global joint registry data.
V. Pentland, Zoe Thompson, A. Dayimu, N. Demiris +22 more
2026The Lancet19 citations Open access
Semantic Scholar
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
A. Pedersen, A. Mailhac, A. Garland, S. Overgaard +10 more
2020Acta Orthopaedica19 citations Open access
Semantic Scholar
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
A. Pedersen, I. Andersen, S. Overgaard, A. Fenstad +3 more
2019Acta Orthopaedica19 citations Open access
Semantic Scholar
The provision of nurse‐led follow‐up at Norwegian intensive care units
A. L. Moi, S. Storli, E. Gjengedal, A. N. Holme +5 more
2018Journal of Clinical Nursing19 citations
Semantic Scholar
Rates of Subjective Failure After Both Isolated and Combined Posterior Cruciate Ligament Reconstruction: A Study From the Norwegian Knee Ligament Registry 2004-2021
Gilbert Moatshe, C. LaPrade, A. Fenstad, A. Persson +4 more
2024American Journal of Sports Medicine17 citations Open access
Semantic Scholar
Kaplan-Meier and Cox Regression Are Preferable for the Analysis of Time to Revision of Joint Arthroplasty
S. Lie, A. Fenstad, S. Lygre, Gard Kroken +5 more
2022JB & JS open access17 citations Open access
Semantic Scholar
The completeness of national hip and knee replacement registers
J. French, K. Deere, M. Whitehouse, Derek Pegg +13 more
2024Acta Orthopaedica16 citations Open access
Semantic Scholar
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
A. Silman, C. Combescure, R. Ferguson, S. Graves +11 more
2021Acta Orthopaedica15 citations Open access
Semantic Scholar
The 2018 Otto Aufranc Award: How Does Genome-wide Variation Affect Osteolysis Risk After THA?
S. Macinnes, K. Hatzikotoulas, A. Fenstad, Karan M. Shah +8 more
2019Clinical Orthopaedics and Related Research15 citations Open access
Semantic Scholar
The Maternal and Paternal Effects on Clinically and Surgically Defined Osteoarthritis
E. Weldingh, M. Johnsen, K. Hagen, N. Østerås +7 more
2019Arthritis & Rheumatology15 citations Open access
Semantic Scholar
Good validity in the Norwegian Knee Ligament Register: assessment of data quality for key variables in primary and revision cruciate ligament reconstructions from 2004 to 2013
Espen Midttun, M. T. Andersen, L. Engebretsen, H. Visnes +3 more
2022BMC Musculoskeletal Disorders14 citations Open access
Semantic Scholar
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.
Oskari A. Pakarinen, V. Ponkilainen, Claus Varnum, Alma B. Pedersen +8 more
2024Journal of Arthroplasty13 citations
Semantic Scholar
Ceiling Effect of the Combined Norwegian and Danish Knee Ligament Registers Limits Anterior Cruciate Ligament Reconstruction Outcome Prediction
R. K. Martin, S. Wastvedt, Ayoosh Pareek, A. Persson +6 more
2023American Journal of Sports Medicine13 citations Open access
Semantic Scholar
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
Tero Irmola, V. Ponkilainen, K. Mäkelä, O. Robertsson +7 more
2022Acta Orthopaedica13 citations Open access
Semantic Scholar
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
O. Lutro, S. Mo, Marianne Bollestad Tjørhom, A. Fenstad +5 more
2024Acta Orthopaedica12 citations Open access
Semantic Scholar
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
J. Gjertsen, D. Nilsen, O. Furnes, G. Hallan +3 more
2024Acta Orthopaedica11 citations Open access
Semantic Scholar
Compensation claims after hip arthroplasty surgery in Norway 2008–2018
T. F. Aae, R. Jakobsen, I. Bukholm, A. Fenstad +2 more
2021Acta Orthopaedica10 citations Open access
Semantic Scholar
Low arthroplasty survival after treatment for proximal humerus fracture sequelae: 3,245 shoulder replacements from the Nordic Arthroplasty Register Association
Ditte Unbehaun, S. Rasmussen, R. Hole, A. Fenstad +7 more
2020Acta Orthopaedica10 citations Open access
Semantic Scholar
Revision Anterior Cruciate Ligament Reconstruction: Surgeon-Reported Causes of Failure From the Norwegian Knee Ligament Register
Søren Vindfeld, A. Persson, Line Lindanger, A. Fenstad +2 more
2025American Journal of Sports Medicine9 citations
Semantic Scholar
Longer-term quality of care, effectiveness, and cost-effectiveness of implementing a model of care for osteoarthritis: a cluster-randomized controlled trial.
N. Østerås, Eline Aas, T. Moseng, L. van Bodegom-Vos +7 more
2023Osteoarthritis and Cartilage9 citations Open access
Semantic Scholar
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
K. Pawloy, A. Fenstad, Tesfaye H. Leta, G. Hallan +4 more
2023Acta Orthopaedica9 citations Open access
Semantic Scholar
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)
Jake Von Hintze, V. Ponkilainen, A. W-Dahl, N. Hailer +8 more
2025Acta Orthopaedica8 citations Open access
Semantic Scholar
Unsupervised Machine Learning of the Combined Danish and Norwegian Knee Ligament Registers: Identification of 5 Distinct Patient Groups With Differing ACL Revision Rates
R. K. Martin, S. Wastvedt, Ayoosh Pareek, A. Persson +6 more
2024American Journal of Sports Medicine8 citations
Semantic Scholar

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