The invention relates to a method of processing a medical image, the method comprising:receiving medical image data, the medical image data representing a medical image of at least a portion of a vertebral column；processing the medical image data to determine a plurality of positions within the image, each of the plurality of positions corresponding to a position relating to a vertebral bone within the vertebral column； andprocessing data representing the plurality of positions, to determine a degree of deformity of at least one vertebral bone within the vertebral column.
