Spinal Cord Infringement vs. Impingement: Clarifying the Terminology

Both terms describe mechanical compression of the spinal cord, but usage varies:

• Infringement: Broader term—any structure (disc, tumor, bone, ligament) encroaching on the cord.
• Impingement: Often used synonymously; sometimes implies compression specifically from spinal canal stenosis (narrowing of the bony canal).

Clinically, the distinction is less important than identifying the compressive lesion, its severity, and neurological impact. MRI is the primary diagnostic tool. Treatment targets the underlying cause (decompression, tumor resection, stabilization) to prevent permanent myelopathy.