R. Frobell

Medicine · Health Sciences

39h-index5.6kcitations142works0.52yr avg
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Research Topics

Knee injuries and reconstruction techniques(106), Total Knee Arthroplasty Outcomes(85), Osteoarthritis Treatment and Mechanisms(43), Sports injuries and prevention(25), Shoulder Injury and Treatment(18)

Publications142 total

Structural Changes of the Anterior Cruciate Ligament (ACL), Evaluated by MRI, and Their Relation to Clinical Outcomes, Within 2 Years After ACL Injury. Results From the NACOX Cohort Study
Journal of Orthopaedic and Sports Physical Therapy·2026
Long-term impact of acute knee injury with hemarthrosis: Osteoarthritis incidence and patient-reported outcomes in a large consecutive cohort over 12 years
Osteoarthritis and Cartilage Open·2025Open Access
Bone shape changes over two years following acute anterior cruciate ligament injury: Reconstructed vs non-reconstructed knees
Osteoarthritis and Cartilage Open·2025· 2 citedOpen Access
Association Between ACL Continuity on Magnetic Resonance Imaging at 5 Years After an Acute ACL Rupture and 11-Year Outcomes: A Secondary Analysis From the KANON Trial
The American Journal of Sports Medicine·2025Open Access
Association between injury-related factors and cartilage T2 relaxation time in the subacute phase in patients after anterior cruciate ligament injury
Osteoarthritis and Cartilage·2025· 1 citedOpen Access
Two-Year Longitudinal Changes in Knee Cartilage Thickness Following Acute ACL Injury: Comparing ACL Reconstruction with Rehabilitation to Rehabilitation Alone
Osteoarthritis and Cartilage·2025
STRUCTURAL CHANGES OF THE ANTERIOR CRUCIATE LIGAMENT (ACL), EVALUATED BY MRI, AND THEIR RELATION TO CLINICAL OUTCOMES, WITHIN TWO YEARS OF ACL INJURY: RESULTS: FROM THE NACOX-COHORT STUDY
Osteoarthritis and Cartilage·2025
SYMPTOMS SUGGESTIVE OF EARLY-STAGE KNEE OA ASSOCIATE WITH BONE SHAPE CHANGES POST-ACL INJURY: DATA FROM THE KANON TRIAL
Osteoarthritis and Cartilage·2025· 2 cited
Varus alignment of the hip and knee 2 years after anterior cruciate ligament injury is associated with medial tibiofemoral osteoarthritis 3 years later
Journal of Experimental Orthopaedics·2025· 1 citedOpen Access
Bone shape changes over two years following acute anterior cruciate ligament (ACL) injury: reconstructed vs non-reconstructed knees
Osteoarthritis and Cartilage·2024Open Access
Fiber continuity of the acutely ruptured anterior cruciate ligament over two years evaluated by three-dimensional MRI
Osteoarthritis and Cartilage·2024Open Access
IS ANTERIOR CRUCIATE LIGAMENT CONTINUITY ON MRI 5 YEARS AFTER ACUTE ACL RUPTURE ASSOCIATED WITH 11-YEAR OUTCOMES? A SECONDARY ANALYSIS FROM THE KANON TRIAL
Osteoarthritis and Cartilage·2024Open Access
Diagnostic Accuracy of Candidate Magnetic Resonance Imaging Knee Osteoarthritis Definitions Versus Radiograph in an Acute Anterior Cruciate Ligament Injury Cohort
Arthritis Care & Research·2023· 5 citedOpen Access
Treatment for Acute Anterior Cruciate Ligament Tear in Young Active Adults
NEJM Evidence·2023· 17 cited
Factors associated with healing failure after early repair of acute, trauma-related rotator cuff tears
Journal of Shoulder and Elbow Surgery·2023· 11 citedOpen Access
Clinical, patient-reported, radiographic and magnetic resonance imaging findings 11 years after acute posterior cruciate ligament injury treated non-surgically
BMC Musculoskeletal Disorders·2023· 5 citedOpen Access
Incidence and concomitant chondral injuries in a consecutive cohort of primary traumatic patellar dislocations examined with sub-acute MRI
International Orthopaedics·2023· 9 citedOpen Access
Evidence of ACL healing on MRI following ACL rupture treated with rehabilitation alone may be associated with better patient-reported outcomes: a secondary analysis from the KANON trial
British Journal of Sports Medicine·2022· 52 citedOpen Access
The challenge of recruiting multimorbid older patients identified in a hospital database to a randomised controlled trial
Aging Clinical and Experimental Research·2022· 2 citedOpen Access
Quantitative evaluation of the tibiofemoral joint cartilage by T2 mapping in patients with acute anterior cruciate ligament injury vs contralateral knees: results from the subacute phase using data from the NACOX study cohort
Osteoarthritis and Cartilage·2022· 19 citedOpen Access
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Frequent Co-authors

Stefan Lohmander(24), Martin Englund(15), Ewa M. Roos(12), Frank W. Roemer(11), W. Wirth(10), F. Eckstein(10), Harald Roos(8), André Struglics(7), M. Hudelmaier(6), Aleksandra Turkiewicz(5), Per Swärd(5), Jonas Ranstam(4), David J. Hunter(4), S. Larsson(4), Bradley T. Wyman(4), Michael C. Nevitt(4), D. Dreher(4), George Peat(3), Ali Guermazi(3), José G. Tamez‐Peña(3)