Spondylo is the source word for numerous terms describing different conditions of the spine viewed on MRI, and because of this overlap it may provide rise come confusion. Let’s begin with part definitions.

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Spondylosis is a general term introduce to a usually diffuse degenerative and also age related process involving facet arthropathy and hypertrophy, hypertrophic vertebral changes, and ligamentous transforms including lengthening and also buckling. This latter procedure produces apparent ligamentous thickening i beg your pardon is periodically inaccurately referred to as ligamentous hypertrophy. Spondylosis is materialized somewhat in different way in the cervical spine than in the lumbar spine. In the cervical spine emphasize are mostly rotational and to a lesserextent axial loading and spondylosis is viewed in ligaments, uncovertebral(uncinate) hypertrophy and spondylotic ridges AKA disc-osteophyte complex. The disc osteophyte facility is a protruding ridge created of chronically bulging key encased v bony hypertrophy and also granulation or scar tissue and is different from a focal distance or pure disc herniation, which space less common in the cervical spine. In the lumbar regions, stressors are mainly related to axial loading (weight), and spondylosis outcomes in ligamentous and facet changes as well as marginal osteophytes. Discogenic changes in the lumbar spine selection from broad based symmetric disc bulging to focal bowl protrusions or extrusions.


Spondylolisthesisrefers to a readjust in position of one vertebral body through relation to another, typically anterolisthesis. Spondylolisthesis come in 3 flavors: degenerative, postoperative, and also spondylolytic. Degenerative spondylolisthesis occurs as soon as the vertebral body has slipped front on the vertebra listed below as a result of degenerative processes and also spondylosis and also usually results in varying degrees of both canal and foraminal stenosis.

Spondylolysisis a term provided to suggest either fracture or congenital defect in the Pars Interarticularis i m sorry is a small bony segment top to and also supporting the articular facet in the posterior elements. Once there is a pars defect or fracture, the vertebral body might slip forward (spondylolisthesis)while the posterior column may remain resolved or slip backwards slightly. This results in canal widening with foraminal narrowing.

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Postoperative spondylolisthesisoccurs once laminectomy has been performed and, comparable to pars defect or fracture, results in canal widening through or without foraminal narrowing.