Radiology Site

MRI Osteoarthritis Knee Score (MOAKS)

Knee Osteoarthritis (OA) MRI scoring is a semi-quantitative method used to evaluate the severity and progression of osteoarthritis by analyzing multiple structural features in the knee joint—such as cartilage degradation, bone marrow lesions, and meniscus damage—using Magnetic Resonance Imaging. It provides a comprehensive “whole-organ” assessment, allowing for detailed, longitudinal tracking of disease progression

Knee OA MRI Scoring Tool

Knee OA MRI Score

Simplified MOAKS/WORMS Assessment

0
Total Points
1

Cartilage & BMLs (Per Compartment)

Medial Tibiofemoral (MTF)

Lateral Tibiofemoral (LTF)

2

Meniscus

3

Joint wide features

Calculating…

0 Points

Medial Status

Normal

Lateral Status

Normal

Recommended Action

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Note: This is a simplified multi-compartment scoring system. Severity grades are based on cumulative structural damage visible on T1, T2-FS, or PD-weighted sequences.
Reference: Modified from MOAKS & WORMS scoring for Knee Osteoarthritis.

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