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J Knee Surg 2023; 36(06): 584-590
DOI: 10.1055/s-0041-1740390
Original Article

Does MRI Knee in Those over 50 Years with Knee Pain in Osteoarthritis Alter Management? A Retrospective Review

Alexandra N. Murphy 
1   Department of Radiology, The National Orthopaedic Hospital Cappagh, Finglas, Dublin, Ireland
,
Bryan Yelverton
2   Department of Orthopaedic Surgery, The National Orthopaedic Hospital Cappagh, Finglas, Dublin, Ireland
,
Kevin Clesham
2   Department of Orthopaedic Surgery, The National Orthopaedic Hospital Cappagh, Finglas, Dublin, Ireland
,
Kathy Hassell
3   Department of Medical Sciences and Nutrition, School of Medicine, University of Aberdeen, King's College, Aberdeen, United Kingdom
,
Eoin Kavanagh
1   Department of Radiology, The National Orthopaedic Hospital Cappagh, Finglas, Dublin, Ireland
,
Stephen Eustace
1   Department of Radiology, The National Orthopaedic Hospital Cappagh, Finglas, Dublin, Ireland
,
James Cashman
2   Department of Orthopaedic Surgery, The National Orthopaedic Hospital Cappagh, Finglas, Dublin, Ireland
› Author Affiliations Funding None.
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Abstract

Knee osteoarthritis (OA) is a significant cause of pain and disability worldwide. Imaging provides diagnosis, prognostication, and follow-up. Radiographs are first line, useful, and inexpensive. Magnetic resonance imaging (MRI) can detect additional features not seen on radiograph, but it is of questionable usefulness in the management of knee OA. Our aim was to investigate the usefulness of MRI in the workup of knee OA and whether MRI alters management in knee OA. A retrospective review was performed of consecutive MRI knees performed for knee pain in those over 50 years. Clinical information and documentation of management plan pre- and post-MRI were collected. Assessment was made whether the MRI results influenced the final management plan. Of the 222 MRI knees included for study, the majority (62.2%) had not had a recent radiograph. OA was reported in 86.9% of radiographs and 89.6% of MRI. On MRI, the most prevalent finding was tearing/abnormality of the medial meniscus, seen in 47% of MRIs overall, increasing to all in severe OA. MRI assisted with management in 9.5% of all (21/222) patients, and changed management plans in 23% of those that had documented management plans prior to the MRI (6/26 patients). MRIs can guide tailored management in knee OA and are useful for surgical planning; however, they should only be ordered in certain cases, and a radiograph should always be performed first. MRI should be considered if symptoms are not explained by OA alone or the appropriate treatment option requires MRI.

Keywords

MRI - knee - arthroscopy - osteoarthritis


Publication History

Received: 30 April 2021

Accepted: 22 October 2021

Article published online:
08 December 2021

© 2021. Thieme. All rights reserved.

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