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Lateral meniscal body extrusion is associated with MRI-defined knee structural damage progression over 4 years: Data from the osteoarthritis initiative.
European Journal of Radiology 2023 March 22
PURPOSE: To investigate the association of lateral meniscal body extrusion (LMBE) with OA-related knee structural damage progression over 4 years and to obtain thresholds of LMBE in predicting knee structural damage progression.
METHOD: We studied 196 subjects (67 male) with a mean age of 59.5 ± 7.9 (SD) years (range45-78 years) that were randomly selected from the Osteoarthritis Initiative. Radiological assessment was performed using the Osteoarthritis Research Society International grading system. Baseline LMBE was quantified on coronal sections of intermediate-weighted MRI sequences obtained at 3.0 T scanner. Knee structural damages were measured using the whole-organ MRI score. Linear regression analysis and binary logistic regression analysis was used to assess the correlation between LMBE and knee structural damage. ROC analysis and Youden index were used for calculating thresholds.
RESULTS: Cross-sectionally, increased LMBE was significantly associated with more severe lateral meniscal damage, patellofemoral and lateral compartment cartilage damage, and posterior cruciate ligament damage. Longitudinally, LMBE was statistically associated with progression of lateral meniscal damage, lateral compartment cartilage damage and bone marrow edema patterns, posterior cruciate ligament lesions and popliteal cysts. The thresholds of LMBE in suggesting progression of lateral meniscal lesions and lateral compartment cartilage lesions were 1.4 mm and 1.3 mm, respectively.
CONCLUSION: Baseline LMBE was associated with structural damage progression over 4 years in knees with or at risks for OA. Thresholds of 1.4 mm and 1.3 mm could be used in predicting progression over 4 years of lateral meniscal damage and lateral compartment cartilage damage, respectively.
METHOD: We studied 196 subjects (67 male) with a mean age of 59.5 ± 7.9 (SD) years (range45-78 years) that were randomly selected from the Osteoarthritis Initiative. Radiological assessment was performed using the Osteoarthritis Research Society International grading system. Baseline LMBE was quantified on coronal sections of intermediate-weighted MRI sequences obtained at 3.0 T scanner. Knee structural damages were measured using the whole-organ MRI score. Linear regression analysis and binary logistic regression analysis was used to assess the correlation between LMBE and knee structural damage. ROC analysis and Youden index were used for calculating thresholds.
RESULTS: Cross-sectionally, increased LMBE was significantly associated with more severe lateral meniscal damage, patellofemoral and lateral compartment cartilage damage, and posterior cruciate ligament damage. Longitudinally, LMBE was statistically associated with progression of lateral meniscal damage, lateral compartment cartilage damage and bone marrow edema patterns, posterior cruciate ligament lesions and popliteal cysts. The thresholds of LMBE in suggesting progression of lateral meniscal lesions and lateral compartment cartilage lesions were 1.4 mm and 1.3 mm, respectively.
CONCLUSION: Baseline LMBE was associated with structural damage progression over 4 years in knees with or at risks for OA. Thresholds of 1.4 mm and 1.3 mm could be used in predicting progression over 4 years of lateral meniscal damage and lateral compartment cartilage damage, respectively.
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