"NB: Several definitions of what exactly constitutes a disc protrusion have been proposed/used over the years, and it is important to realise that these differ substantially from one another 1-3. At the time of writing (2022), the most widely used terminology was proposed in 2014 by Fardon et al., and represents a consensus of the North American Spine Society, the American Society of Spine Radiology and the American Society of Neuroradiology 3; see intervertebral disc disease nomenclature."
"asymmetric bulge: does not involve the entire circumference, but nonetheless more than 90°"
Expected headings
"Classification"
"NB: Several definitions of what exactly constitutes a disc protrusion have been proposed/used over the years, and it is important to realise that these differ substantially from one another 1-3. At the time of writing (2022), the most widely used terminology was proposed in 2014 by Fardon et al., and represents a consensus of the North American Spine Society, the American Society of Spine Radiology and the American Society of Neuroradiology 3; see intervertebral disc disease nomenclature."