Fig. 1

Measurement of meniscal width/length/height. a Width/length/height: meniscal dimensions are measured using an oriented bounding box. The box was aligned to the meniscus roots, and the size was adjusted as long as the entire meniscus body was enclosed. The dimensions of the meniscus correspond to the length of the sides of the box: y-axis (green arrow) = meniscal width; x-axis (red arrow) = meniscal length; z-axis (blue arrow) = meniscal height. b 2D-MRI sizing based on MRI of the contralateral side. c 2D-RX sizing according to Pollard on ipsilateral radiography