May Arna Risberg
- Professor; PT, PhD
- +47 413 12 776
Alternative email adress: m.a.risberg@nih.no
Publications 2024
No difference in osteoarthritis, but less graft failures after 5 years, comparing anatomic double-bundle to anatomic single-bundle ACL reconstruction
Knee Surg Sports Traumatol Arthrosc (in press)
DOI 10.1002/ksa.12528, PubMed 39506539
Arthroscopic partial meniscectomy versus exercise therapy for degenerative meniscal tears: 10-year follow-up of the OMEX randomised controlled trial
Br J Sports Med (in press)
DOI 10.1136/bjsports-2024-108644, PubMed 39326908
Rehabilitation following periacetabular osteotomy for acetabular dysplasia: A qualitative interview study exploring challenges, hopes and expectations among patients in Denmark and Australia
Int J Orthop Trauma Nurs, 54, 101116
DOI 10.1016/j.ijotn.2024.101116, PubMed 38925029
Cost-effectiveness of strength exercise or aerobic exercise compared with usual care for patients with knee osteoarthritis: secondary results from a multiarm randomised controlled trial in Norway
BMJ Open, 14 (5), e079704
DOI 10.1136/bmjopen-2023-079704, PubMed 38803266
The Delaware-Oslo ACL Cohort treatment algorithm yields superior outcomes to usual care 9-12 years after anterior cruciate ligament reconstruction
Knee Surg Sports Traumatol Arthrosc, 32 (2), 214-222
DOI 10.1002/ksa.12039, PubMed 38226690
Patient Acceptable Symptom State Thresholds for IKDC-SKF and KOOS at the 10-Year Follow-up After Anterior Cruciate Ligament Injury: A Study From the Delaware-Oslo ACL Cohort
Orthop J Sports Med, 12 (5), 23259671241250025
DOI 10.1177/23259671241250025, PubMed 38827138
Toward designing human intervention studies to prevent osteoarthritis after knee injury: A report from an interdisciplinary OARSI 2023 workshop
Osteoarthr Cartil Open, 6 (2), 100449
DOI 10.1016/j.ocarto.2024.100449, PubMed 38440780
Publications 2023
Clinically Relevant Subgroups Among Athletes Who Have Ruptured Their Anterior Cruciate Ligaments: A Delaware-Oslo Cohort Study
Arthritis Care Res (Hoboken), 75 (9), 1914-1924
DOI 10.1002/acr.25089, PubMed 36645015
Body Mass Index, Quality of Life and Activity Limitation Trajectories over 2 Years in Patients with Knee or Hip Osteoarthritis: A Dual Trajectory Approach Based on 4265 Patients Included in the AktivA Quality Register
J Clin Med, 12 (22)
DOI 10.3390/jcm12227094, PubMed 38002706
Arthroscopic partial meniscectomy vs non-surgical or sham treatment in patients with MRI-confirmed degenerative meniscus tears: a systematic review and meta-analysis with individual participant data from 605 randomised patients
Osteoarthritis Cartilage, 31 (5), 557-566
DOI 10.1016/j.joca.2023.01.002, PubMed 36646304
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
BMC Musculoskelet Disord, 24 (1), 714
DOI 10.1186/s12891-023-06831-x, PubMed 37684597
Publications 2022
Association of Quadriceps Strength Symmetry and Surgical Status With Clinical Osteoarthritis Five Years After Anterior Cruciate Ligament Rupture
Arthritis Care Res (Hoboken), 74 (3), 386-391
DOI 10.1002/acr.24479, PubMed 33026698
Muscle Strength and Osteoarthritis Progression After Surgery or Exercise for Degenerative Meniscal Tears: Secondary Analyses of a Randomized Trial
Arthritis Care Res (Hoboken), 74 (1), 70-78
DOI 10.1002/acr.24736, PubMed 34151533
What tests should be used to assess functional performance in youth and young adults following anterior cruciate ligament or meniscal injury? A systematic review of measurement properties for the OPTIKNEE consensus
Br J Sports Med, 56 (24), 1454-1464
DOI 10.1136/bjsports-2022-105510, PubMed 35697502
Creating Crosswalks for Knee Outcomes After ACL Reconstruction Between the KOOS and the IKDC-SKF
J Bone Joint Surg Am, 104 (8), 723-731
DOI 10.2106/JBJS.20.02233, PubMed 35192570
Four Distinct 5-Year Trajectories of Knee Function Emerge in Patients Who Followed the Delaware-Oslo ACL Cohort Treatment Algorithm
Am J Sports Med, 50 (11), 2944-2952
DOI 10.1177/03635465221116313, PubMed 35975945
Measurement properties for muscle strength tests following anterior cruciate ligament and/or meniscus injury: What tests to use and where do we need to go? A systematic review with meta-analyses for the OPTIKNEE consensus
Br J Sports Med, 56 (24), 1422-1431
DOI 10.1136/bjsports-2022-105498, PubMed 36113973
OPTIKNEE 2022: consensus recommendations to optimise knee health after traumatic knee injury to prevent osteoarthritis
Br J Sports Med, 56 (24), 1393-1405
DOI 10.1136/bjsports-2022-106299, PubMed 36379676
Publications 2021
On a Trajectory for Success-9 in Every 10 People With a Degenerative Meniscus Tear Have Improved Knee Function Within 2 Years After Treatment: A Secondary Exploratory Analysis of a Randomized Controlled Trial
J Orthop Sports Phys Ther, 51 (6), 289-297
DOI 10.2519/jospt.2021.10025, PubMed 33971735
Assessing implementation, limited efficacy, and acceptability of the BEAST tool: A rehabilitation and return-to-sport decision tool for nonprofessional athletes with anterior cruciate ligament reconstruction
Phys Ther Sport, 52, 147-154
DOI 10.1016/j.ptsp.2021.08.011, PubMed 34492443
Low Rates of Radiographic Knee Osteoarthritis 5 Years After ACL Reconstruction or Rehabilitation Alone: The Delaware-Oslo ACL Cohort Study
Orthop J Sports Med, 9 (8), 23259671211027530
DOI 10.1177/23259671211027530, PubMed 34423060
Clinical, Functional, and Physical Activity Outcomes 5 Years Following the Treatment Algorithm of the Delaware-Oslo ACL Cohort Study
J Bone Joint Surg Am, 103 (16), 1473-1481
DOI 10.2106/JBJS.20.01731, PubMed 33999877
Prevention and early treatment, a future focus for OA research
Osteoarthritis Cartilage, 29 (12), 1627-1629
DOI 10.1016/j.joca.2021.10.007, PubMed 34903333
Publications 2020
Development of osteoarthritis in patients with degenerative meniscal tears treated with exercise therapy or surgery: a randomized controlled trial
Osteoarthritis Cartilage, 28 (7), 897-906
DOI 10.1016/j.joca.2020.01.020, PubMed 32184135
Response to Letter to the Editor: "Osteoarthritis progression after exercise therapy or meniscectomy in patients with degenerative meniscal tears"
Osteoarthritis Cartilage, 28 (8), 1148-1149
DOI 10.1016/j.joca.2020.05.003, PubMed 32416222
Is good muscle function a protective factor for early signs of knee osteoarthritis after anterior cruciate ligament reconstruction? The SHIELD cohort study protocol
Osteoarthr Cartil Open, 2 (4), 100102
DOI 10.1016/j.ocarto.2020.100102, PubMed 36474871
Activity and functional readiness, not age, are the critical factors for second anterior cruciate ligament injury - the Delaware-Oslo ACL cohort study
Br J Sports Med, 54 (18), 1099-1102
DOI 10.1136/bjsports-2019-100623, PubMed 32046955
The Active with OsteoArthritis (AktivA) Physiotherapy Implementation Model: A Patient Education, Supervised Exercise and Self-Management Program for Patients with Mild to Moderate Osteoarthritis of the Knee or Hip Joint. A National Register Study with a Two-Year Follow-Up
J Clin Med, 9 (10)
DOI 10.3390/jcm9103112, PubMed 32993103
Patient-reported outcome measures for hip-related pain: a review of the available evidence and a consensus statement from the International Hip-related Pain Research Network, Zurich 2018
Br J Sports Med, 54 (14), 848-857
DOI 10.1136/bjsports-2019-101456, PubMed 32066573
Comparing the Responsiveness of the Global Rating Scale With Legacy Knee Outcome Scores: A Delaware-Oslo Cohort Study
Am J Sports Med, 48 (8), 1953-1960
DOI 10.1177/0363546520924817, PubMed 32515989
Relationship between cam morphology, hip symptoms, and hip osteoarthritis: the Musculoskeletal pain in Ullersaker STudy (MUST) cohort
Hip Int, 31 (6), 789-796
DOI 10.1177/1120700020943853, PubMed 32701366
Meniscus or Cartilage Injury at the Time of Anterior Cruciate Ligament Tear Is Associated With Worse Prognosis for Patient-Reported Outcome 2 to 10 Years After Anterior Cruciate Ligament Injury: A Systematic Review
J Orthop Sports Phys Ther, 50 (9), 490-502
DOI 10.2519/jospt.2020.9451, PubMed 32741324
Infographic. Consensus recommendations on the classification, definition and diagnostic criteria of hip-related pain in young and middle-aged active adults from the International Hip-related Pain Research Network, Zurich 2018
Br J Sports Med, 55 (2), 115-117
DOI 10.1136/bjsports-2020-102219, PubMed 32868314
Consensus recommendations on the classification, definition and diagnostic criteria of hip-related pain in young and middle-aged active adults from the International Hip-related Pain Research Network, Zurich 2018
Br J Sports Med, 54 (11), 631-641
DOI 10.1136/bjsports-2019-101453, PubMed 31959678
Arthroscopic meniscectomy versus non-surgical or sham treatment in patients with MRI confirmed degenerative meniscus lesions: a protocol for an individual participant data meta-analysis
BMJ Open, 10 (3), e031864
DOI 10.1136/bmjopen-2019-031864, PubMed 32152157
Publications 2019
Superior 2-Year Functional Outcomes Among Young Female Athletes After ACL Reconstruction in 10 Return-to-Sport Training Sessions: Comparison of ACL-SPORTS Randomized Controlled Trial With Delaware-Oslo and MOON Cohorts
Orthop J Sports Med, 7 (8), 2325967119861311
DOI 10.1177/2325967119861311, PubMed 31413963
Keep calm and carry on testing: a substantive reanalysis and critique of 'what is the evidence for and validity of return-to-sport testing after anterior cruciate ligament reconstruction surgery? A systematic review and meta-analysis'
Br J Sports Med, 53 (23), 1444-1446
DOI 10.1136/bjsports-2019-100906, PubMed 31289039
Knee Pathology in Young Adults After Pediatric Anterior Cruciate Ligament Injury: A Prospective Case Series of 47 Patients With a Mean 9.5-Year Follow-up
Am J Sports Med, 47 (7), 1557-1566
DOI 10.1177/0363546519837935, PubMed 31034243
Establishing outcome measures in early knee osteoarthritis
Nat Rev Rheumatol, 15 (7), 438-448
DOI 10.1038/s41584-019-0237-3, PubMed 31201386
A Pragmatic Approach to the Implementation of Osteoarthritis Guidelines Has Fewer Potential Barriers Than Recommended Implementation Frameworks
J Orthop Sports Phys Ther, 49 (1), 1-4
DOI 10.2519/jospt.2019.0601, PubMed 30598054
Is exercise therapy for femoroacetabular impingement in or out of FASHIoN? We need to talk about current best practice for the non-surgical management of FAI syndrome
Br J Sports Med, 53 (19), 1204-1205
DOI 10.1136/bjsports-2018-100173, PubMed 30626598
Physiotherapist-led treatment for young to middle-aged active adults with hip-related pain: consensus recommendations from the International Hip-related Pain Research Network, Zurich 2018
Br J Sports Med, 54 (9), 504-511
DOI 10.1136/bjsports-2019-101458, PubMed 31732651
Complex Tears, Extrusion, and Larger Excision Are Prognostic Factors for Worse Outcomes 1 and 2 Years After Arthroscopic Partial Meniscectomy for Degenerative Meniscal Tears: A Secondary Explorative Study of the Surgically Treated Group From the Odense-Oslo Meniscectomy Versus Exercise (OMEX) Trial
Am J Sports Med, 47 (10), 2402-2411
DOI 10.1177/0363546519858602, PubMed 31298923
What's the rate of knee osteoarthritis 10 years after anterior cruciate ligament injury? An updated systematic review
Br J Sports Med, 53 (18), 1162-1167
DOI 10.1136/bjsports-2018-099751, PubMed 30936063
Does surgery reduce knee osteoarthritis, meniscal injury and subsequent complications compared with non-surgery after ACL rupture with at least 10 years follow-up? A systematic review and meta-analysis
Br J Sports Med, 54 (10), 592-598
DOI 10.1136/bjsports-2019-100765, PubMed 31732650
Standardised measurement of physical capacity in young and middle-aged active adults with hip-related pain: recommendations from the first International Hip-related Pain Research Network (IHiPRN) meeting, Zurich, 2018
Br J Sports Med, 54 (12), 702-710
DOI 10.1136/bjsports-2019-101457, PubMed 31857334
Efficacy of periacetabular osteotomy followed by progressive resistance training compared to progressive resistance training as non-surgical treatment in patients with hip dysplasia (PreserveHip) - a protocol for a randomised controlled trial
BMJ Open, 9 (12), e032782
DOI 10.1136/bmjopen-2019-032782, PubMed 31874882
Better before-better after: efficacy of prehabilitation for older patients with osteoarthritis awaiting total hip replacement-a study protocol for a randomised controlled trial in South-Eastern Norway
BMJ Open, 9 (12), e031626
DOI 10.1136/bmjopen-2019-031626, PubMed 31892650
Coper Classification Early After ACL Rupture Changes With Progressive Neuromuscular and Strength Training and Is Associated With 2-Year Success: Response
Am J Sports Med, 47 (11), NP65-NP66
DOI 10.1177/0363546519863309, PubMed 31479325
Coper Classification Early After Anterior Cruciate Ligament Rupture Changes With Progressive Neuromuscular and Strength Training and Is Associated With 2-Year Success: The Delaware-Oslo ACL Cohort Study
Am J Sports Med, 47 (4), 807-814
DOI 10.1177/0363546519825500, PubMed 30790527
The Maternal and Paternal Effects on Clinically and Surgically Defined Osteoarthritis
Arthritis Rheumatol, 71 (11), 1844-1848
DOI 10.1002/art.41023, PubMed 31237417
Evaluating plasma extracellular vesicle microRNAs as possible biomarkers for osteoarthritis
Osteoarthr Cartil Open, 1 (3-4), 100018
DOI 10.1016/j.ocarto.2019.100018, PubMed 36475003
Publications 2018
No Difference in the KOOS Quality of Life Subscore Between Anatomic Double-Bundle and Anatomic Single-Bundle Anterior Cruciate Ligament Reconstruction of the Knee: A Prospective Randomized Controlled Trial With 2 Years' Follow-up
Am J Sports Med, 46 (10), 2341-2354
DOI 10.1177/0363546518782454, PubMed 30021073
Coping With Anterior Cruciate Ligament Injury From Childhood to Maturation: A Prospective Case Series of 44 Patients With Mean 8 Years' Follow-up
Am J Sports Med, 47 (1), 22-30
DOI 10.1177/0363546518810750, PubMed 30476435
Anterior Cruciate Ligament Injury-Who Succeeds Without Reconstructive Surgery? The Delaware-Oslo ACL Cohort Study
Orthop J Sports Med, 6 (5), 2325967118774255
DOI 10.1177/2325967118774255, PubMed 29854860
Impairment-Based Rehabilitation Following Hip Arthroscopy: Postoperative Protocol for the HIP ARThroscopy International Randomized Controlled Trial
J Orthop Sports Phys Ther, 48 (4), 336-342
DOI 10.2519/jospt.2018.8002, PubMed 29607764
Changes in the rate of publicly financed knee arthroscopies: an analysis of data from the Norwegian patient registry from 2012 to 2016
BMJ Open, 8 (6), e021199
DOI 10.1136/bmjopen-2017-021199, PubMed 29909370
Significant Knowledge Gaps Between Clinical Practice and Research on Femoroacetabular Impingement: Are We on the Same Path?
J Orthop Sports Phys Ther, 48 (4), 228-229
DOI 10.2519/jospt.2018.0103, PubMed 29607765
The 6-m timed hop test is a prognostic factor for outcomes in patients with meniscal tears treated with exercise therapy or arthroscopic partial meniscectomy: a secondary, exploratory analysis of the Odense-Oslo meniscectomy versus exercise (OMEX) trial
Knee Surg Sports Traumatol Arthrosc, 27 (8), 2478-2487
DOI 10.1007/s00167-018-5241-7, PubMed 30446783
Arthroscopic Surgical Procedures Versus Sham Surgery for Patients With Femoroacetabular Impingement and/or Labral Tears: Study Protocol for a Randomized Controlled Trial (HIPARTI) and a Prospective Cohort Study (HARP)
J Orthop Sports Phys Ther, 48 (4), 325-335
DOI 10.2519/jospt.2018.7931, PubMed 29607761
Package progression for patients with musculoskeletal ailments?
Tidsskr. Nor. Laegeforen., 138 (17), 1598-1599
[Care pathways for patients with musculoskeletal disorders?]
Tidsskr Nor Laegeforen, 138 (17)
DOI 10.4045/tidsskr.18.0709, PubMed 30378410
Normative Quadriceps and Hamstring Muscle Strength Values for Female, Healthy, Elite Handball and Football Players
J Strength Cond Res, 32 (8), 2314-2323
DOI 10.1519/JSC.0000000000002579, PubMed 29794892
Return to pivoting sport after ACL reconstruction: association with osteoarthritis and knee function at the 15-year follow-up
Br J Sports Med, 52 (18), 1199-1204
DOI 10.1136/bjsports-2017-097718, PubMed 29550753
Publications 2017
Middle-aged patients with an MRI-verified medial meniscal tear report symptoms commonly associated with knee osteoarthritis
Acta Orthop, 88 (6), 664-669
DOI 10.1080/17453674.2017.1360985, PubMed 28787249
Knee Stability and Movement Coordination Impairments: Knee Ligament Sprain Revision 2017
J Orthop Sports Phys Ther, 47 (11), A1-A47
DOI 10.2519/jospt.2017.0303, PubMed 29089004
Distribution of osteoarthritis in a Norwegian population-based cohort: associations to risk factor profiles and health-related quality of life
Rheumatol Int, 37 (9), 1541-1550
DOI 10.1007/s00296-017-3721-6, PubMed 28451795
Functional performance 6 months after ACL reconstruction can predict return to participation in the same preinjury activity level 12 and 24 months after surgery
Br J Sports Med, 52 (6), 375
DOI 10.1136/bjsports-2016-097095, PubMed 28954801
Publications 2016
Anterior knee pain following anterior cruciate ligament reconstruction does not increase the risk of patellofemoral osteoarthritis at 15- and 20-year follow-ups
Osteoarthritis Cartilage, 25 (1), 30-33
DOI 10.1016/j.joca.2016.09.012, PubMed 27693503
Quantifying Quadriceps Muscle Strength in Patients With ACL Injury, Focal Cartilage Lesions, and Degenerative Meniscus Tears: Differences and Clinical Implications
Orthop J Sports Med, 4 (10), 2325967116667717
DOI 10.1177/2325967116667717, PubMed 27766275
Does Extended Preoperative Rehabilitation Influence Outcomes 2 Years After ACL Reconstruction? A Comparative Effectiveness Study Between the MOON and Delaware-Oslo ACL Cohorts
Am J Sports Med, 44 (10), 2608-2614
DOI 10.1177/0363546516652594, PubMed 27416993
Physical impairments in symptomatic femoroacetabular impingement: a systematic review of the evidence
Br J Sports Med, 50 (19), 1180
DOI 10.1136/bjsports-2016-096152, PubMed 27301577
Simple decision rules can reduce reinjury risk by 84% after ACL reconstruction: the Delaware-Oslo ACL cohort study
Br J Sports Med, 50 (13), 804-8
DOI 10.1136/bjsports-2016-096031, PubMed 27162233
Patients With Chondrolabral Pathology Have Bilateral Functional Impairments 12 to 24 Months After Unilateral Hip Arthroscopy: A Cross-sectional Study
J Orthop Sports Phys Ther, 46 (11), 947-956
DOI 10.2519/jospt.2016.6577, PubMed 27802796
Authors' reply to Joshi
BMJ, 354, i4623
DOI 10.1136/bmj.i4623, PubMed 27582253
Exercise therapy versus arthroscopic partial meniscectomy for degenerative meniscal tear in middle aged patients: randomised controlled trial with two year follow-up
BMJ, 354, i3740
DOI 10.1136/bmj.i3740, PubMed 27440192
Exercise therapy versus arthroscopic partial meniscectomy for degenerative meniscal tear in middle aged patients: randomised controlled trial with two year follow-up
Br J Sports Med, 50 (23), 1473-1480
DOI 10.1136/bjsports-2016-i3740rep, PubMed 30142084
Do Patients Failing Return-to-Activity Criteria at 6 Months After Anterior Cruciate Ligament Reconstruction Continue Demonstrating Deficits at 2 Years?
Am J Sports Med, 45 (5), 1037-1048
DOI 10.1177/0363546516680619, PubMed 28125899
We Need to Implement Current Evidence in Early Rehabilitation Programs to Improve Long-Term Outcome After Anterior Cruciate Ligament Injury
J Orthop Sports Phys Ther, 46 (9), 710-3
DOI 10.2519/jospt.2016.0608, PubMed 27581178
Changes in Knee Osteoarthritis, Symptoms, and Function After Anterior Cruciate Ligament Reconstruction: A 20-Year Prospective Follow-up Study
Am J Sports Med, 44 (5), 1215-24
DOI 10.1177/0363546515626539, PubMed 26912282
Evaluation of focal cartilage lesions of the knee using MRI T2 mapping and delayed Gadolinium Enhanced MRI of Cartilage (dGEMRIC)
BMC Musculoskelet Disord, 17, 73
DOI 10.1186/s12891-016-0941-y, PubMed 26868015
Publications 2015
Gait Characteristics, Symptoms, and Function in Persons With Hip Osteoarthritis: A Longitudinal Study With 6 to 7 Years of Follow-up
J Orthop Sports Phys Ther, 45 (7), 539-49
DOI 10.2519/jospt.2015.5441, PubMed 25996360
No effects of a 12-week supervised exercise therapy program on gait in patients with mild to moderate osteoarthritis: a secondary analysis of a randomized trial
J Negat Results Biomed, 14, 5
DOI 10.1186/s12952-015-0023-y, PubMed 25886499
Erratum: Sagittal plane gait characteristics in hip osteoarthritis patients with mild to moderate symptoms compared to healthy controls: a cross-sectional study
BMC Musculoskelet Disord, 16, 52
DOI 10.1186/s12891-015-0483-8, PubMed 25887966
OARSI Clinical Trials Recommendations: Design and conduct of clinical trials of rehabilitation interventions for osteoarthritis
Osteoarthritis Cartilage, 23 (5), 803-14
DOI 10.1016/j.joca.2015.03.013, PubMed 25952351
Two factors that may underpin outstanding outcomes after ACL rehabilitation
Br J Sports Med, 49 (22), 1425
DOI 10.1136/bjsports-2015-095194, PubMed 26238870
Exercises including weight vests and a patient education program for women with osteopenia: a feasibility study of the OsteoACTIVE rehabilitation program
J Orthop Sports Phys Ther, 45 (2), 97-105, C1-4
DOI 10.2519/jospt.2015.4842, PubMed 25579693
Effect of exercises with weight vests and a patient education programme for women with osteopenia and a healed wrist fracture: a randomized, controlled trial of the OsteoACTIVE programme
BMC Musculoskelet Disord, 16, 352
DOI 10.1186/s12891-015-0811-z, PubMed 26578370
Inter- and intrarater reliability of four single-legged hop tests and isokinetic muscle torque measurements in children
Knee Surg Sports Traumatol Arthrosc, 23 (7), 1907-16
DOI 10.1007/s00167-013-2771-x, PubMed 26284271
Effect of exercise therapy compared with arthroscopic surgery on knee muscle strength and functional performance in middle-aged patients with degenerative meniscus tears: a 3-mo follow-up of a randomized controlled trial
Am J Phys Med Rehabil, 94 (6), 460-73
DOI 10.1097/PHM.0000000000000209, PubMed 25299520
Long-Term Effect of Exercise Therapy and Patient Education on Impairments and Activity Limitations in People With Hip Osteoarthritis: Secondary Outcome Analysis of a Randomized Clinical Trial
Phys Ther, 96 (6), 818-27
DOI 10.2522/ptj.20140520, PubMed 26678445
Publications 2014
Defining the presence of radiographic knee osteoarthritis: a comparison between the Kellgren and Lawrence system and OARSI atlas criteria
Knee Surg Sports Traumatol Arthrosc, 23 (12), 3532-9
DOI 10.1007/s00167-014-3205-0, PubMed 25079135
Nonsurgical or Surgical Treatment of ACL Injuries: Knee Function, Sports Participation, and Knee Reinjury: The Delaware-Oslo ACL Cohort Study
J Bone Joint Surg Am, 96 (15), 1233-1241
DOI 10.2106/JBJS.M.01054, PubMed 25100769
How does a combined preoperative and postoperative rehabilitation programme influence the outcome of ACL reconstruction 2 years after surgery? A comparison between patients in the Delaware-Oslo ACL Cohort and the Norwegian National Knee Ligament Registry
Br J Sports Med, 49 (6), 385-9
DOI 10.1136/bjsports-2014-093891, PubMed 25351782
Postmenopausal women with osteopenia and a healed wrist fracture have reduced physical function and quality of life compared to a matched, healthy control group with no fracture
BMC Womens Health, 14, 92
DOI 10.1186/1472-6874-14-92, PubMed 25086601
Self-reported knee function can identify athletes who fail return-to-activity criteria up to 1 year after anterior cruciate ligament reconstruction: a delaware-oslo ACL cohort study
J Orthop Sports Phys Ther, 44 (12), 914-23
DOI 10.2519/jospt.2014.4852, PubMed 25347228
Degenerative meniscus tears should be looked upon as wrinkles with age--and should be treated accordingly
Br J Sports Med, 48 (9), 741
DOI 10.1136/bjsports-2014-093568, PubMed 24719404
Relationship between CTX-II and patient characteristics, patient-reported outcome, muscle strength, and rehabilitation in patients with a focal cartilage lesion of the knee: a prospective exploratory cohort study of 48 patients
BMC Musculoskelet Disord, 15, 99
DOI 10.1186/1471-2474-15-99, PubMed 24661577
Upper limb physical function and adverse effects after breast cancer surgery: a prospective 2.5-year follow-up study and preoperative measures
Arch Phys Med Rehabil, 95 (5), 875-81
DOI 10.1016/j.apmr.2013.12.015, PubMed 24389401
Effect of accelerated weightbearing after matrix-associated autologous chondrocyte implantation on the femoral condyle: a prospective, randomized controlled study presenting MRI-based and clinical outcomes after 5 years
Am J Sports Med, 43 (1), 146-53
DOI 10.1177/0363546514554910, PubMed 25378208
Publications 2013
Weight-bearing asymmetries during Sit-To-Stand in patients with mild-to-moderate hip osteoarthritis
Gait Posture, 39 (2), 683-8
DOI 10.1016/j.gaitpost.2013.09.010, PubMed 24238750
Online registration of monthly sports participation after anterior cruciate ligament injury: a reliability and validity study
Br J Sports Med, 48 (9), 748-53
DOI 10.1136/bjsports-2012-092075, PubMed 23645830
Consensus criteria for defining 'successful outcome' after ACL injury and reconstruction: a Delaware-Oslo ACL cohort investigation
Br J Sports Med, 49 (5), 335-42
DOI 10.1136/bjsports-2013-092299, PubMed 23881894
Functional outcomes following a non-operative treatment algorithm for anterior cruciate ligament injuries in skeletally immature children 12 years and younger. A prospective cohort with 2 years follow-up
Br J Sports Med, 47 (8), 488-94
DOI 10.1136/bjsports-2012-092066, PubMed 23446640
Prevalence and incidence of new meniscus and cartilage injuries after a nonoperative treatment algorithm for ACL tears in skeletally immature children: a prospective MRI study
Am J Sports Med, 41 (8), 1771-9
DOI 10.1177/0363546513491092, PubMed 23771955
Exercise therapy may postpone total hip replacement surgery in patients with hip osteoarthritis: a long-term follow-up of a randomised trial
Ann Rheum Dis, 74 (1), 164-9
DOI 10.1136/annrheumdis-2013-203628, PubMed 24255546
The feasibility of a 3-month active rehabilitation program for patients with knee full-thickness articular cartilage lesions: the Oslo Cartilage Active Rehabilitation and Education Study
J Orthop Sports Phys Ther, 43 (5), 310-24
DOI 10.2519/jospt.2013.4354, PubMed 23485794
Efficacy of strength and aerobic exercise on patient-reported outcomes and structural changes in patients with knee osteoarthritis: study protocol for a randomized controlled trial
BMC Musculoskelet Disord, 14, 266
DOI 10.1186/1471-2474-14-266, PubMed 24028201
Hand, hip and knee osteoarthritis in a Norwegian population-based study--the MUST protocol
BMC Musculoskelet Disord, 14, 201
DOI 10.1186/1471-2474-14-201, PubMed 23826721
Publications 2012
Sagittal plane gait characteristics in hip osteoarthritis patients with mild to moderate symptoms compared to healthy controls: a cross-sectional study
BMC Musculoskelet Disord, 13, 258
DOI 10.1186/1471-2474-13-258, PubMed 23256709
Inter- and intrarater reliability of isokinetic thigh muscle strength tests in postmenopausal women with osteopenia
Arch Phys Med Rehabil, 93 (3), 420-7
DOI 10.1016/j.apmr.2011.10.001, PubMed 22265342
A pair-matched comparison of return to pivoting sports at 1 year in anterior cruciate ligament-injured patients after a nonoperative versus an operative treatment course
Am J Sports Med, 40 (11), 2509-16
DOI 10.1177/0363546512458424, PubMed 22962290
Ultrasound-guided sclerosis of neovessels in patellar tendinopathy: a prospective study of 101 patients
Am J Sports Med, 40 (3), 542-7
DOI 10.1177/0363546511433012, PubMed 22238058
No differences in prevalence of osteoarthritis or function after open versus endoscopic technique for anterior cruciate ligament reconstruction: 12-year follow-up report of a randomized controlled trial
Am J Sports Med, 40 (11), 2492-8
DOI 10.1177/0363546512458766, PubMed 22984128
Single-legged hop tests as predictors of self-reported knee function after anterior cruciate ligament reconstruction: the Delaware-Oslo ACL cohort study
Am J Sports Med, 40 (10), 2348-56
DOI 10.1177/0363546512457551, PubMed 22926749
The current evidence for treatment of ACL injuries in children is low: a systematic review
J Bone Joint Surg Am, 94 (12), 1112-9
DOI 10.2106/JBJS.K.00960, PubMed 22717830
Knee function and knee muscle strength in middle-aged patients with degenerative meniscal tears eligible for arthroscopic partial meniscectomy
Br J Sports Med, 48 (9), 784-8
DOI 10.1136/bjsports-2012-091540, PubMed 23242961
A 12-week exercise therapy program in middle-aged patients with degenerative meniscus tears: a case series with 1-year follow-up
J Orthop Sports Phys Ther, 42 (11), 919-31
DOI 10.2519/jospt.2012.4165, PubMed 22960783
Reliability and validity of the Physical Activity Scale for the Elderly (PASE) in patients with hip osteoarthritis
BMC Musculoskelet Disord, 13, 26
DOI 10.1186/1471-2474-13-26, PubMed 22353558
The prevalence of patellofemoral osteoarthritis 12 years after anterior cruciate ligament reconstruction
Knee Surg Sports Traumatol Arthrosc, 21 (4), 942-9
DOI 10.1007/s00167-012-2161-9, PubMed 22898911
Publications 2011
Single-legged hop tests as predictors of self-reported knee function in nonoperatively treated individuals with anterior cruciate ligament injury
Am J Sports Med, 39 (11), 2347-54
DOI 10.1177/0363546511417085, PubMed 21828364
Management of anterior cruciate ligament injuries in skeletally immature individuals
J Orthop Sports Phys Ther, 42 (3), 172-83
DOI 10.2519/jospt.2012.3608, PubMed 21891880
"Knee function and prevalence of knee osteoarthritis after anterior cruciate ligament reconstruction: a prospective study with 10 to 15 years of follow-up". Letter to the editor
Am J Sports Med, 39 (4), NP3; author reply NP3-4
DOI 10.1177/0363546511403704, PubMed 21460071
Patients with focal full-thickness cartilage lesions benefit less from ACL reconstruction at 2-5 years follow-up
Knee Surg Sports Traumatol Arthrosc, 20 (8), 1533-9
DOI 10.1007/s00167-011-1739-y, PubMed 22065293
Who needs ACL surgery? An open question
J Orthop Sports Phys Ther, 41 (10), 706-7
DOI 10.2519/jospt.2011.0108, PubMed 21979448
Muscle strength and hop performance criteria prior to return to sports after ACL reconstruction
Knee Surg Sports Traumatol Arthrosc, 19 (11), 1798-805
DOI 10.1007/s00167-011-1669-8, PubMed 21932078
Publications 2010
Anterior cruciate ligament-deficient potential copers and noncopers reveal different isokinetic quadriceps strength profiles in the early stage after injury
Am J Sports Med, 38 (3), 586-93
DOI 10.1177/0363546509349492, PubMed 20110458
Functional tests should be accentuated more in the decision for ACL reconstruction
Knee Surg Sports Traumatol Arthrosc, 18 (11), 1517-25
DOI 10.1007/s00167-010-1113-5, PubMed 20411377
A progressive 5-week exercise therapy program leads to significant improvement in knee function early after anterior cruciate ligament injury
J Orthop Sports Phys Ther, 40 (11), 705-21
DOI 10.2519/jospt.2010.3345, PubMed 20710097
Development of a therapeutic exercise program for patients with osteoarthritis of the hip
Phys Ther, 90 (4), 592-601
DOI 10.2522/ptj.20090083, PubMed 20185613
Efficacy of patient education and supervised exercise vs patient education alone in patients with hip osteoarthritis: a single blind randomized clinical trial
Osteoarthritis Cartilage, 18 (10), 1237-43
DOI 10.1016/j.joca.2010.05.015, PubMed 20633669
[Osteoarthritis]
Tidsskr Nor Laegeforen, 130 (21), 2136-40
DOI 10.4045/tidsskr.09.1054, PubMed 21052117
No difference in knee function or prevalence of osteoarthritis after reconstruction of the anterior cruciate ligament with 4-strand hamstring autograft versus patellar tendon-bone autograft: a randomized study with 10-year follow-up
Am J Sports Med, 38 (3), 448-54
DOI 10.1177/0363546509350301, PubMed 20097928
Outcomes of an anatomic posterolateral knee reconstruction
J Bone Joint Surg Am, 92 (1), 16-22
DOI 10.2106/JBJS.I.00474, PubMed 20048091
No effect of group-based aerobic interval training on N-terminal pro- B-type natriuretic peptide levels in patients with chronic heart failure
Scand Cardiovasc J, 44 (4), 223-9
DOI 10.3109/14017431.2010.496869, PubMed 20636229
Knee function and prevalence of knee osteoarthritis after anterior cruciate ligament reconstruction: a prospective study with 10 to 15 years of follow-up
Am J Sports Med, 38 (11), 2201-10
DOI 10.1177/0363546510373876, PubMed 20713644
The association between radiographic knee osteoarthritis and knee symptoms, function and quality of life 10-15 years after anterior cruciate ligament reconstruction
Br J Sports Med, 45 (7), 583-8
DOI 10.1136/bjsm.2010.073130, PubMed 20647299
Functioning and disability in patients with hip osteoarthritis with mild to moderate pain
J Orthop Sports Phys Ther, 40 (10), 616-24
DOI 10.2519/jospt.2010.3346, PubMed 20811166
[Extracorporeal shock wave therapy (ESWT) and radial extracorporeal shock wave therapy (rESWT) in chronic musculoskeletal pain]
Tidsskr Nor Laegeforen, 130 (23), 2360-4
DOI 10.4045/tidsskr.09.0654, PubMed 21139662
Quadriceps muscle weakness after anterior cruciate ligament reconstruction: a risk factor for knee osteoarthritis?
Arthritis Care Res (Hoboken), 62 (12), 1706-14
DOI 10.1002/acr.20299, PubMed 20662041
Publications 2009
Preoperative quadriceps strength is a significant predictor of knee function two years after anterior cruciate ligament reconstruction
Br J Sports Med, 43 (5), 371-6
DOI 10.1136/bjsm.2008.057059, PubMed 19224907
Outcome after knee dislocations: a 2-9 years follow-up of 85 consecutive patients
Knee Surg Sports Traumatol Arthrosc, 17 (9), 1013-26
DOI 10.1007/s00167-009-0869-y, PubMed 19609504
Kneartrose etter fremre korsbåndsskade: en systematisk oversikt
In Norsk idrettsmedisin, Medborgeren, Oslo, 24(2009)nr 3, s. 11-12
BIBSYS 100077609
Full-thickness cartilage lesion do not affect knee function in patients with ACL injury
Knee Surg Sports Traumatol Arthrosc, 18 (3), 298-303
DOI 10.1007/s00167-009-0894-x, PubMed 19760401
Performance-based functional evaluation of non-operative and operative treatment after anterior cruciate ligament injury
Scand J Med Sci Sports, 19 (3), 345-55
DOI 10.1111/j.1600-0838.2008.00816.x, PubMed 18510592
Arthroscopic surgery provides no additional benefit over physiotherapy and medication for the treatment of knee osteoarthritis
Aust J Physiother, 55 (2), 137
DOI 10.1016/s0004-9514(09)70045-5, PubMed 19534013
The long-term effect of 2 postoperative rehabilitation programs after anterior cruciate ligament reconstruction: a randomized controlled clinical trial with 2 years of follow-up
Am J Sports Med, 37 (10), 1958-66
DOI 10.1177/0363546509335196, PubMed 19556470
Rehabilitation after anterior cruciate ligament injury influences joint loading during walking but not hopping
Br J Sports Med, 43 (6), 423-8
DOI 10.1136/bjsm.2008.056846, PubMed 19273473
Physical activity for the affected limb and arm lymphedema after breast cancer surgery. A prospective, randomized controlled trial with two years follow-up
Acta Oncol, 48 (8), 1102-10
DOI 10.3109/02841860903061683, PubMed 19863217
Changes in arm morbidities and health-related quality of life after breast cancer surgery - a five-year follow-up study
Acta Oncol, 48 (8), 1111-8
DOI 10.3109/02841860903061691, PubMed 19863218
Validity for the simplified water displacement instrument to measure arm lymphedema as a result of breast cancer surgery
Arch Phys Med Rehabil, 90 (5), 803-9
DOI 10.1016/j.apmr.2008.11.016, PubMed 19406300
Knee osteoarthritis after anterior cruciate ligament injury: a systematic review
Am J Sports Med, 37 (7), 1434-43
DOI 10.1177/0363546509338827, PubMed 19567666
Publications 2008
Individuals with an anterior cruciate ligament-deficient knee classified as noncopers may be candidates for nonsurgical rehabilitation
J Orthop Sports Phys Ther, 38 (10), 586-95
DOI 10.2519/jospt.2008.2750, PubMed 18979658
Group-based aerobic interval training in patients with chronic heart failure: Norwegian Ullevaal Model
Phys Ther, 88 (4), 523-35
DOI 10.2522/ptj.20060374, PubMed 18258768
Long-term effects of a group-based high-intensity aerobic interval-training program in patients with chronic heart failure
Am J Cardiol, 102 (9), 1220-4
DOI 10.1016/j.amjcard.2008.06.046, PubMed 18940296
Effects of group-based high-intensity aerobic interval training in patients with chronic heart failure
Am J Cardiol, 102 (10), 1361-5
DOI 10.1016/j.amjcard.2008.07.016, PubMed 18993156
Short-term beneficial effects of physiotherapy exercise after knee arthroplasty for osteoarthritis
Aust J Physiother, 54 (1), 73
DOI 10.1016/s0004-9514(08)70069-2, PubMed 18298362
Publications 2007
Performance-based functional outcome for children 12 years or younger following anterior cruciate ligament injury: a two to nine-year follow-up study
Knee Surg Sports Traumatol Arthrosc, 16 (3), 214-23
DOI 10.1007/s00167-007-0469-7, PubMed 18157486
Neuromuscular training versus strength training during first 6 months after anterior cruciate ligament reconstruction: a randomized clinical trial
Phys Ther, 87 (6), 737-50
DOI 10.2522/ptj.20060041, PubMed 17442840
Publications 2005
Outpatient physical therapy influences the patients' health-related quality of life
Eur. J. Physiother., 7 (1), 40-47
DOI 10.1080/14038190510009423
The reliability of a simplified water displacement instrument: a method for measuring arm volume
Arch Phys Med Rehabil, 86 (1), 86-9
DOI 10.1016/j.apmr.2003.12.042, PubMed 15640996
Warm-up exercise prevents acute knee and ankle injuries in young handball players
Aust J Physiother, 51 (2), 131
DOI 10.1016/s0004-9514(05)70043-x, PubMed 15981353
Publications 2004
Effect of neuromuscular training on proprioception, balance, muscle strength, and lower limb function in female team handball players
Clin J Sport Med, 14 (2), 88-94
DOI 10.1097/00042752-200403000-00006, PubMed 15014342
Rehabilitering fremre korsbåndskade: en systematisk oversiktsartikkel
In Norsk idrettsmedisin, Medborgeren, Oslo, 19(2004)nr 4, s. 5-11
BIBSYS 042493846
Publications 2003
Dynamic knee stability after anterior cruciate ligament rupture
Exerc Sport Sci Rev, 31 (4), 195-200
DOI 10.1097/00003677-200310000-00007, PubMed 14571959
Publications 2002
The effect of bracing on proprioception of knees with anterior cruciate ligament injury
J Orthop Sports Phys Ther, 32 (1), 11-5
DOI 10.2519/jospt.2002.32.1.11, PubMed 11787904
Fremre korsbåndskader: rehabilitering med hovedvekt på nevromuskulær trening
In Norsk idrettsmedisin, Medborgeren, Oslo, 17(2002)nr 3, S. 9-13, 15
BIBSYS 022624996
Publications 2001
Four-strand hamstring tendon autograft compared with patellar tendon-bone autograft for anterior cruciate ligament reconstruction. A randomized study with two-year follow-up
Am J Sports Med, 29 (6), 722-8
DOI 10.1177/03635465010290060901, PubMed 11734484
Neuromuskulær trening som rehabilitering og forebygging: relatert til kneskader
In Fysioterapeuten, Norsk fysioterapeutforbund, Oslo, 68(2001)nr 2, S. 12-21
BIBSYS 010326774
Design and implementation of a neuromuscular training program following anterior cruciate ligament reconstruction
J Orthop Sports Phys Ther, 31 (11), 620-31
DOI 10.2519/jospt.2001.31.11.620, PubMed 11720295
A new device to measure knee laxity during weightbearing and non-weightbearing conditions
J Orthop Res, 19 (6), 1185-91
DOI 10.1016/S0736-0266(01)00055-9, PubMed 11781022
Publications 1999
The Effect of knee bracing after anterior cruciate ligament reconstruction: a prospective, randomized study with two years' follow-up
In American journal of sports medicine, The Society, Baltimore, Md., 27(1999)nr 1, S. 76-83
BIBSYS 990580121
Evaluation of knee function after anterior cruciate ligament reconstruction
Surgical Clinic, Ullevaal Hospital, University of Oslo, [Oslo], 1 b. (flere pag.)
BIBSYS 990946126, ISBN 82-995147-0-3
Proprioception after anterior cruciate ligament reconstruction with and without bracing
Knee Surg Sports Traumatol Arthrosc, 7 (5), 303-9
DOI 10.1007/s001670050168, PubMed 10525700
Sensitivity to changes over time for the IKDC form, the Lysholm score, and the Cincinnati knee score. A prospective study of 120 ACL reconstructed patients with a 2-year follow-up
Knee Surg Sports Traumatol Arthrosc, 7 (3), 152-9
DOI 10.1007/s001670050140, PubMed 10401651
The effect of knee bracing after anterior cruciate ligament reconstruction. A prospective, randomized study with two years' follow-up
Am J Sports Med, 27 (1), 76-83
DOI 10.1177/03635465990270012101, PubMed 9934423
Prospective study of changes in impairments and disabilities after anterior cruciate ligament reconstruction
J Orthop Sports Phys Ther, 29 (7), 400-12
DOI 10.2519/jospt.1999.29.7.400, PubMed 10416180
Publications 1997
Evaluation of knee joint laxity and the structural properties of the anterior cruciate ligament graft in the human. A case report
Am J Sports Med, 25 (2), 203-6
DOI 10.1177/036354659702500211, PubMed 9079174
Publications 1996
Norsk idrettsfysioterapi, forskning og fagutvikling: hvor står vi og hvordan bør vi satse i fremtiden?
In Norsk idrettsmedisin, Medborgeren, Oslo, 11(1996)nr, S. 31-34
BIBSYS 962480835
Publications 1995
Reliability of functional knee tests in normal athletes
Scand J Med Sci Sports, 5 (1), 24-8
DOI 10.1111/j.1600-0838.1995.tb00006.x, PubMed 7882124
Reliability of functional knee tests in normal athletes
In Scandinavian journal of medicine & science in sports, Munksgaard., Copenhagen, 5(1995)nr 1, S. 24-28
BIBSYS 951045040
Publications 1994
Assessment of functional tests after anterior cruciate ligament surgery
J Orthop Sports Phys Ther, 19 (4), 212-7
DOI 10.2519/jospt.1994.19.4.212, PubMed 8173569