It can also occur with ligamentous laxity in response to loading. It can result from advanced disc degeneration or from vertebral body remodeling (as consequent to osteoporosis, trauma, or adjacent structural deformity). Bulge is a term for an image and can be a normal variant (usually at L5-S1). In simple terms, a disc bulge refers to an apparent generalized extension of disc tissues beyond the edges of the edge of vertebrae, usually less than 3mm. Milette, MD in their Combined Task Forces of the North American Spine Society. Herniated DiscĪ disc bulge is not a disc herniation. These testing formats show changes in shape and condition of the disc.
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