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Scrutinizing the cu...
Scrutinizing the cut-off for “pathological” meniscal body extrusion on knee MRI
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- Svensson, F. (författare)
- Lund University,Lunds universitet,Lund OsteoArthritis Division - Clinical Epidemiology Unit,Forskargrupper vid Lunds universitet,Lund University Research Groups
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- Felson, D. T. (författare)
- Boston University
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- Turkiewicz, A. (författare)
- Lund University,Lunds universitet,Lund OsteoArthritis Division - Clinical Epidemiology Unit,Forskargrupper vid Lunds universitet,Lund University Research Groups
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- Guermazi, A. (författare)
- Boston University
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- Roemer, F. W. (författare)
- Friedrich-Alexander University Erlangen-Nürnberg,Boston University
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- Neuman, P. (författare)
- Lund University,Lunds universitet,Lund OsteoArthritis Division - From molecule to clinical implementation,Forskargrupper vid Lunds universitet,Lund University Research Groups
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- Englund, M. (författare)
- Lund University,Lunds universitet,Lund OsteoArthritis Division - Clinical Epidemiology Unit,Forskargrupper vid Lunds universitet,Lund University Research Groups,Boston University
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(creator_code:org_t)
- 2019-01-10
- 2019
- Engelska.
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Ingår i: European Radiology. - : Springer Science and Business Media LLC. - 0938-7994 .- 1432-1084. ; 29:5, s. 2616-2623
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://link.springe...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Objectives: Medial meniscal body extrusion ≥ 3 mm on MRI is often considered “pathologic.” The aims of this study were to (1) assess the adequacy of 3 mm as cut-off for “pathological” extrusion and (2) find an optimal cut-off for meniscal extrusion cross-sectionally associated with radiographic knee osteoarthritis, bone marrow lesions (BMLs), and cartilage damage. Methods: Nine hundred fifty-eight persons, aged 50–90 years from Framingham, MA, USA, had readable 1.5 T MRI scans of the right knee for meniscal body extrusion (measured in mm). BMLs and cartilage damage were read using the whole organ magnetic resonance imaging score (WORMS). Knee X-rays were read according to the Kellgren and Lawrence (KL) scale. We evaluated the performance of the 3-mm cut-off with respect to the three outcomes and estimated a new cut-off maximizing the sum of sensitivity and specificity. Results: The study persons had mean age of 62.2 years, 57.0% were women and the mean body mass index was 28.5 kg/m2. Knees with radiographic osteoarthritis, BMLs, and cartilage damage had overall more meniscal extrusion than knees without. The 3-mm cut-off had moderate sensitivity and low specificity for all three outcomes (sensitivity between 0.68 [95% CI 0.63–0.73] and 0.81 [0.73–0.87], specificity between 0.49 [0.45–0.52] and 0.54 [0.49–0.58]). Using 4 mm maximized the sum of sensitivity and specificity and improved the percentage of correctly classified subjects (from between 54 and 61% to between 64 and 79%). Conclusions: The 4-mm cut-off may be used as an alternative cut-off for denoting pathological meniscal extrusion. Key Points: • Medial meniscal body extrusion is strongly associated with osteoarthritis. • The 3-mm cut-off for medial meniscal body extrusion has high sensitivity but low specificity with respect to bone marrow lesions, cartilage damage, and radiographic osteoarthritis. • The 4-mm cut-off maximizes the sensitivity and specificity with respect to all three osteoarthritis features.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Ortopedi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Orthopaedics (hsv//eng)
Nyckelord
- Cartilage
- Knee joint
- Magnetic resonance imaging
- Meniscus
- Osteoarthritis
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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