Published in:
Open Access
01-05-2018 | Magnetic Resonance
Sensitivity to change and association of three-dimensional meniscal measures with radiographic joint space width loss in rapid clinical progression of knee osteoarthritis
Authors:
Melanie Roth, Katja Emmanuel, Wolfgang Wirth, C. Kent Kwoh, David J. Hunter, Felix Eckstein
Published in:
European Radiology
|
Issue 5/2018
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Abstract
Objective
To determine whether 3D meniscal measures had similar sensitivity to longitudinal change as cartilage thickness; to what extent these measures are associated with longitudinal joint space width (JSW) change; and whether the latter associations differ between minimum (mJSW) and fixed-location JSW.
Methods
Two-year changes in medial meniscal position and morphology, cartilage thickness (MRI) and minimum and fixed-location JSW (radiography) were determined in 35 Osteoarthritis Initiative knees [12 men, age: 67 (51-77) years; 23 women, age: 65 (54-78) years], progressing from baseline Kellgren-Lawrence grade ≤2 to knee replacement within 3-5 years. Multiple linear regression assessed the features contributing to JSW change.
Results
Meniscal measures, cartilage thickness and JSW displayed similar sensitivity to change (standardised response mean≤|0.76|). Meniscal changes were strongly associated with JSW change (r≤|0.66|), adding ≤20% to its variance in addition to cartilage thickness change. Fixed-location JSW change (multiple r2=72%) was more strongly related to cartilage and meniscal change than mJSW (61%). Meniscal morphology explained more of fixed-location JSW and meniscal position more of mJSW.
Conclusion
Meniscal measures provide independent information in explaining the variance of radiographic JSW change. Fixed-location JSW appears to be more reflective of structural change than mJSW and, hence, a potentially superior measure of structural progression.
Key Points
• 3D positional/morphological meniscal measures change in rapidly progressing knees.
• Similar sensitivity to 2-year change of quantitative meniscal/cartilage measures in rapid progression.
• Changes in meniscal measures are strongly associated with radiographic JSW change.
• Meniscal change provides information to explain JSW variance independent of cartilage.
• Fixed-location JSW reflects structural disease stage more closely than minimum JSW.