Fig. 1
From: The AMADEUS score is not a sufficient predictor for functional outcome after high tibial osteotomy
Example MR images for illustration of chondral defect severity grading according to the AMADEUS protocol. A Proton density fat saturated (coronal view) and T2-weighted (sagittal view) MRI images. Example of a patient with a full chondral defect but with an intact subchondral layer. The defect area was measured as 1.06 cm2. A bone marrow edema is clearly visible in the proton density fat weighted images (cornal view). This corresponds to a total AMADEUS score of 60 points: First digit “Area”: 30 points (> 1 cm2 to ≤ 2 cm2), second digit “Depth”: 0 points (full thickness), third digit “Underlying Structures”: 30 points (no bony defect), fourth digit “Bone Marrow Edema”: 0 points (present bone marrow edema). B Proton density fat saturated (coronal view) and T2-weighted fast spine echo (sagittal view) images. Example of a patient with a full chondral defect and concomitant lesion of the subchondral layer. The defect area was measured as 2.27 cm2. A bone marrow edema was not visible. This corresponds to a total AMADEUS of 30 points: First digit “Area”: 20 points (> 2 cm2 to ≤ 4 cm2), second digit “Depth”: 0 points (full thickness), third digit “Underlying Structures”: 0 points (Bony defect > 5 mm), fourth digit “Bone Marrow Edema”: 10 points (no present bone marrow edema)