Browsing Brage NIH by Author "Årøen, Asbjørn"
Now showing items 1-20 of 31
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6-year follow-up of 84 patients with cartilage defects in the knee : knee scores improved but recovery was incomplete
Løken, Sverre; Heir, Stig; Holme, Ingar Morten K.; Engebretsen, Lars; Årøen, Asbjørn (Journal article; Peer reviewed, 2010-10)Background and purpose: The natural history of focal cartilage injury is largely unknown. In this study we investigated 6-year outcomes in patients with arthroscopically verified, focal, fullthickness cartilage injuries ... -
A Controlled Comparison of Microfracture, Debridement, and No Treatment of Concomitant Full-Thickness Cartilage Lesions in Anterior Cruciate Ligament-Reconstructed Knees: A Nationwide Prospective Cohort Study From Norway and Sweden of 368 Patients With 5-Year Follow-up
Ulstein, Svend; Årøen, Asbjørn; Engebretsen, Lars; Forssblad, Magnus; Lygre, Stein Håkon Låstad; Røtterud, Jan Harald (Journal article; Peer reviewed, 2018)Background: The effect of microfracture (MF) or surgical debridement of concomitant full-thickness cartilage lesions in anterior cruciate ligament–reconstructed knees on patient-reported outcomes remains to be ... -
Association between single leg hop tests and patient reported outcome measures and patellar instability in patients with recurrent patellar dislocations
Nilsgård, Tina Løkken; Øiestad, Britt Elin; Randsborg, Per-Henrik; Årøen, Asbjørn; Straume-Næsheim, Truls Martin (Peer reviewed; Journal article, 2023)Objectives: To assess the associations between the single leg hop tests at two premises; baseline and the change after 12 months, and change in patient reported outcome measures and persistent instability after 12 months ... -
Autologous chondrocyte implantation is not better than arthroscopic debridement for the treatment of symptomatic cartilage lesions of the knee: Two-year results from a randomized-controlled trial
Randsborg, Per-Henrik; Brinchmann, Jan Engelsen; Owesen, Christian; Engebretsen, Lars; Birkenes, Thomas; Hanvold, Heidi Andreassen; Saltyte Benth, Jurate; Årøen, Asbjørn (Peer reviewed; Journal article, 2024)Purpose: To compare the functional and patient-reported outcome measures after autologous chondrocyte implantation (ACI) and arthroscopic debridement (AD) in symptomatic, isolated cartilage injuries larger than 2 cm2 in ... -
Automatic segmentation of human knee anatomy by a convolutional neural network applying a 3D MRI protocol
Kulseng, Carl Petter Skaar; Nainamalai, Varatharajan; Grøvik, Endre; Årøen, Asbjørn; Geitung, Jonn Terje; Gjesdal, Kjell-Inge (Peer reviewed; Journal article, 2023)Background: To study deep learning segmentation of knee anatomy with 13 anatomical classes by using a magnetic resonance (MR) protocol of four three-dimensional (3D) pulse sequences, and evaluate possible clinical ... -
Bone marrow mesenchymal stem cells in a hyaluronan scaffold for treatment of an osteochondral defect in a rabbit model
Løken, Sverre; Jakobsen, Rune B.; Årøen, Asbjørn; Heir, Stig; Shahdadfar, A.; Brinchmann, J. E.; Engebretsen, Lars; Reinholt, Finn P. (Peer reviewed; Journal article, 2008-07-01)The purpose of this study was to evaluate the efficiency of using mesenchymal stem cells (MSC) in a hyaluronan scaffold for repair of an osteochondral defect in rabbit knee. Bone marrow was harvested from the posterior ... -
Compensation claims after knee cartilage surgery is rare: A registry-based study from Scandinavia from 2010 to 2015
Aae, Tommy Frøseth; Lian, Øystein Bjerkestrand; Årøen, Asbjørn; Engebretsen, Lars; Randsborg, Per-Henrik (Peer reviewed; Journal article, 2020)Background: Focal cartilage defects (FCDs) in the knee joint has a high prevalence. A broad range of treatment options exists for symptomatic patients. Knowledge of patient compensation claims following surgical treatment ... -
Concomitant full-thickness cartilage lesions do not affect patient-reported outcomes at minimum 10-year follow-up after ACL reconstruction
Wang, Katherine; Eftang, Cathrine Nørstad; Ulstein, Svend; Årøen, Asbjørn; Jakobsen, Rune B. (Peer reviewed; Journal article, 2021)Purpose: To compare patients with a concomitant full-thickness cartilage lesion and anterior cruciate ligament (ACL) injury to patients with an isolated ACL injury at 10–15 years post ACL reconstruction. Methods: This ... -
Development of a pilot cartilage surgery register
Engen, Cathrine Nørstad; Årøen, Asbjørn; Engebretsen, Lars (Peer reviewed; Journal article, 2017)Background: Norway has no prospective surveillance system to monitor the outcome of knee cartilage surgery. In 2004 the Norwegian Registry of Knee Ligament (NKLR) was successfully established, and has yielded useful ... -
Effect of concomitant cartilage lesions on patient-reported outcomes after anterior cruciate ligament reconstruction. A Nationwide chohort study from Norway and Sweden of 8470 patients With 5 year follow-up
Ulstein, Svend; Årøen, Asbjørn; Engebretsen, Lars; Forssblad, Magnus; Lygre, Stein Håkon Låstad; Røtterud, Jan Harald (Journal article; Peer reviewed, 2018)All patients who underwent unilateral primary ACLR registered in the Norwegian and Swedish National Knee Ligament Registries from 2005 to 2008 (n = 15,783) were included in the study. At 5-year follow-up, 8470 (54%) patients ... -
Effect of concomitant meniscal lesions and meniscal surgery in ACL reconstruction with 5-year follow-up: A nationwide prospective cohort study from Norway and Sweden of 8408 patients
Ulstein, Svend; Årøen, Asbjørn; Engebretsen, Lars; Forssblad, Magnus; Røtterud, Jan Harald (Peer reviewed; Journal article, 2021)Background: Increased knowledge of the factors predicting outcome after anterior cruciate ligament reconstruction (ACLR) is needed. Purpose: To determine the effect of concomitant meniscal lesions, and the surgical ... -
The efficacy of strength or aerobic exercise on quality of life and knee function in patients with knee osteoarthritis: A multi-arm randomized controlled trial with 1-year follow-up
Øiestad, Britt Elin; Årøen, Asbjørn; Østerås, Nina; Jarstad, Even; Grotle, Margreth; Røtterud, Jan Harald; Risberg, May Arna (Peer reviewed; Journal article, 2023)Objective: To evaluate the efficacy of strength exercise or aerobic exercise compared to usual care on knee-related quality of life (QoL) and knee function at 4 months and 1 year in individuals with knee osteoarthritis. ... -
Epidemiology of surgically treated posterior cruciate ligament injuries in Scandinavia
Owesen, Christian; Sandven-Thrane, Stine; Lind, Martin; Forssblad, Magnus; Granan, Lars-Petter; Årøen, Asbjørn (Journal article; Peer reviewed, 2015-09-19)Purpose: The main purpose of the study was to provide an overview of injury mechanisms, concomitant injuries, and other relevant epidemiological data for patients treated in Scandinavia with posterior cruciate ligament ... -
Evaluation of focal cartilage lesions of the knee using MRI T2 mapping and delayed Gadolinium Enhanced MRI of Cartilage (dGEMRIC)
Årøen, Asbjørn; Brøgger, Helga Marie; Røtterud, Jan Harald; Sivertsen, Einar Andreas; Engebretsen, Lars; Risberg, May Arna (Journal article; Peer reviewed, 2016)Background: Assessment of degenerative changes of the cartilage is important in knee cartilage repair surgery. Magnetic Resonance Imaging (MRI) T2 mapping and delayed Gadolinium Enhanced MRI of Cartilage (dGEMRIC) are able ... -
Fast track hip fracture care and mortality – an observational study of 2230 patients
Pollmann, Christian Thomas; Røtterud, Jan Harald; Gjertsen, Jan-Erik; Dahl, Fredrik Andreas; Lenvik, Olav; Årøen, Asbjørn (Peer reviewed; Journal article, 2019)Background: Hip fracture patients are frail and have a high mortality. We investigated whether the introduction of fast track care reduced the 30-day mortality after hip fractures. Methods: Fast track hip fracture care was ... -
Intraarticular location predicts cartilage filling and subchondral bone changes in a chondral defect
Heir, Stig; Årøen, Asbjørn; Løken, Sverre; Sulheim, Steinar; Engebretsen, Lars; Reinholt, Finn P. (Journal article; Peer reviewed, 2010-10)Background and purpose: The natural history of, and predictive factors for outcome of cartilage restoration in chondral defects are poorly understood. We investigated the natural history of cartilage filling subchondral ... -
Is T2 mapping reliable in evaluation of native and repair cartilage tissue of the knee?
Banitalebi, Hasan; Owesen, Christian; Årøen, Asbjørn; Tran, Hang Thi; Myklebust, Tor Åge; Randsborg, Per-Henrik (Peer reviewed; Journal article, 2021)Purpose: To evaluate the effect of imaging plane and experience of observers on the reliability of T2 mapping of native and repair cartilage tissue of the knee. Methods: Fifteen consecutive patients from two randomised ... -
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
Birkenes, Thomas; Furnes, Ove Nord; Lygre, Stein Håkon Låstad; Solheim, Eirik Johan; Årøen, Asbjørn; Knutsen, Gunnar; Drogset, Jon Olav; Heir, Stig; Engebretsen, Lars; Løken, Sverre Bertrand; Visnes, Håvard (Peer reviewed; Journal article, 2023)Background: Focal cartilage lesions are common in the knee. The risk of later ipsilateral knee arthroplasty remains unknown. The purposes of the present study were to evaluate the long-term cumulative risk of knee arthroplasty ... -
Low-input RNA-sequencing in patients with cartilage lesions, osteoarthritis, and healthy cartilage
Wang, Katherine; Esbensen, Qin Ying; Karlsen, Tommy Aleksander; Eftang, Cathrine Nørstad; Owesen, Christian; Årøen, Asbjørn; Jakobsen, Rune Bruhn (Peer reviewed; Journal article, 2021)Objective To analyze and compare cartilage samples from 3 groups of patients utilizing low-input RNA-sequencing. Design Cartilage biopsies were collected from patients in 3 groups (n = 48): Cartilage lesion (CL) ... -
Medial patellofemoral ligament reconstruction is superior to active rehabilitation in protecting against further patella dislocations
Straume-Næsheim, Truls Martin; Randsborg, Per-Henrik; Mikaelsen, Jan Rune; Årøen, Asbjørn (Peer reviewed; Journal article, 2022)Purpose: Isolated reconstruction of the medial patellofemoral ligament (MPFL-R) has become the predominant stabilizing procedure in the treatment of recurrent lateral patellar dislocation (LPD). To minimize the risk of ...