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Table 1 MRI classification of osteochondral lesions according to DiPaola et al. [6]

From: Elbow arthroscopy in children and adolescents: analysis of outcome and complications

Grade Findings in the MRI
I No break in articular cartilage, thickening of articular cartilage
II Articular cartilage breached, low signal rim behind fragment, indicating fibrous attachment
III Articular cartilage breached with high signal T2 changes behind fragment suggesting fluid behind the lesion
IV Loose bodies in the joint with lesion of the articular surface