intraspinal
Meaning of intraspinal: Intraspinal structures, fluid, or medications are located within the spinal canal, the protected space that houses the spinal cord and its coverings.
Definition of intraspinal
Intraspinal describes something located, occurring, or administered within the spinal canal, the bony channel formed by the vertebrae that houses the spinal cord, its surrounding membranes, and the cerebrospinal fluid. The term is used to describe anatomic findings, fluid collections, and certain medications or procedures performed within this space.
Intraspinal medication delivery, such as certain injections placed directly into the space around the spinal cord, is used in specific clinical situations to achieve a more targeted effect than medication given by other routes. Intraspinal findings on imaging can include masses, fluid collections, or structural changes affecting the spinal cord or the surrounding canal.
Because the spinal canal is a confined space that also houses the spinal cord, an intraspinal process has the potential to affect the cord directly, which is a key consideration in evaluating findings in this location.
Used in a sentence
Imaging demonstrated an intraspinal fluid collection extending over several vertebral levels.
Good to know
An intraspinal mass or fluid collection is significant partly because of its confined location, which can compress the spinal cord even when the finding itself would be less concerning elsewhere in the body.
Word origin
Where “intraspinal” comes from
Formed from intra- (Latin, meaning "within") and spinal, from Latin spina, meaning "thorn" or "spine."