Neural Foraminal Stenosis: Definition
The neural foramina are the small openings between the vertebrae of the spine where the nerve roots from the spinal cord exit. A nerve root is the nerve … Read More
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Nerve Root Impingement: Definition
A nerve root is the nerve fiber bundle that comes off from the spinal cord. It carries the motor and sensory nerve fibers out of the canal through … Read More
Indentation of Thecal Sac: Definition
The thecal sac, also known as the dural sac, is a membrane sheath that covers the spinal cord and the surrounding cerebral spinal fluids (CSF). Indentation means there … Read More
Lateral Recess Stenosis: Definition
The lateral recess is the space within the rear sides of the spinal canal. It is an important passageway for nerves that branch away from the spinal cord. … Read More
Facet Joint Hypertrophy: Definition
Facet joints are a pair of small joints at each level along the spine that are designed to provide support and flexibility. These can degenerate and enlarge (aka … Read More
Facet Arthropathy: Definition
Facet joints are a pair of small joints at each level along the spine that are designed to provide support and flexibility. Facet arthropathy, or degeneration, refers to … Read More
Effacement of Ventral Epidural Fat: Definition
Ventral epidural fat is fat that is located in the space between the spinal cord and front wall of the spinal canal. Effacement means this fat is being … Read More
Disc Protrusion: Definition
A disc protrusion is similar to a disc bulge in that it is caused by weakening of the outside layer of the spinal disc (called the annulus), causing … Read More
Disc Herniation: Definition
A disc herniation occurs when the jelly-like center of the intervertebral disc spills into the canal. This occurs when the fibrous outer layer (annulus) which surrounds the jelly-like … Read More
Disc Height Loss: Definition
Disc height loss is when the spinal discs become smaller, typically due to dehydration. This is a normal part of aging and a common feature of degenerative disc … Read More