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Where does meniscal damage progress most rapidly? An analysis using three-dimensional shape models on data from the
B Dube1, M A Bowes2, S R Kingsbury1
1Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Biomedical Research Centre, Leeds, UK.
Osteoarthritis and Cartilage
|October 22, 2017
Summary
Novel 3D image analysis identified medial meniscus thickness and tibial coverage as key indicators of knee osteoarthritis (OA) progression. These measurements show potential for tracking disease advancement in patients.
Area of Science:
- Orthopedics and Sports Medicine
- Radiology and Medical Imaging
- Biomedical Engineering
Background:
- Meniscal pathology is a critical factor in knee osteoarthritis (OA) development and progression.
- Magnetic resonance imaging (MRI) reveals significant heterogeneity in meniscal damage, complicating accurate measurement.
- Meniscal changes serve as potential biomarkers and therapeutic targets for OA.
Purpose of the Study:
- To employ advanced 3D image analysis to identify which meniscal pathologies exhibit the most significant changes during OA progression.
- To evaluate the responsiveness of novel quantitative MRI measures of the meniscus in a cohort at risk for medial knee OA progression.
Main Methods:
- Utilized knee MRI data from the Osteoarthritis Initiative progression cohort.
- Manually segmented medial and lateral menisci and analyzed them using a statistical shape model of the tibia.
- Assessed responsiveness at 1 year using standardized response means (SRMs) for meniscal volume, extrusion, thickness, and tibial coverage, including sub-region analysis.
Main Results:
- Reliability of novel measurements was excellent (ICCs > 0.98).
- Meniscal volume and extrusion showed no significant change over 1 year.
- Medial meniscus thickness (SRM -0.35) and medial tibial coverage (SRM -0.36) demonstrated moderate responsiveness, with greater changes in the posterior medial compartment but increased variance.
Conclusions:
- Meniscal thickness and tibial coverage in the posterior medial region are the most responsive measures for assessing OA progression.
- These quantitative MRI measures hold promise for enhancing the discriminatory power in evaluating knee OA progression.
