Spine Surgery Glossary
100 terms total — 24 showing — Last updated 27 Sep 2026
dural ectasia
Abnormal enlargement or ballooning of the dural sac beyond normal anatomical boundaries.
dural tear
Inadvertent perforation of the dura mater during spinal surgery, requiring immediate repair.
dynesys system
A dynamic posterior stabilization system using flexible rods and spacers to provide motion preservation while offering s...
en bloc resection
A surgical technique that removes a spinal tumor and surrounding tissue as one intact piece to achieve wide margins.
endplate preparation
Surgical technique of removing cartilaginous endplate while preserving subchondral bone to optimize fusion in interbody...
endplate sclerosis
Increased bone density and hardening of vertebral endplates seen on imaging studies.
epidural fibrosis
Excessive scar tissue formation in the epidural space following spinal surgery, potentially causing persistent symptoms.
facet arthropathy
Degenerative joint disease affecting the facet joints of the spine.
facet capsulotomy
Surgical division or incision of the joint capsule surrounding facet joints to achieve spinal decompression or facilitat...
facet rhizotomy
Minimally invasive procedure using radiofrequency energy to ablate sensory nerves supplying facet joints for pain relief...
facet tropism
Asymmetric orientation of facet joints between left and right sides at the same spinal level, potentially contributing t...
facet violation
Inadvertent penetration or damage to facet joint capsule during spinal surgery.
facet wiring
Surgical stabilization technique using wire loops around facet joints for fusion.
facetectomy
Surgical removal of facet joints to decompress neural structures and access the spinal canal.
failed back surgery syndrome
Persistent or recurrent symptoms following spine surgery, representing unsuccessful surgical outcomes.
foraminotomy
Surgical enlargement of the neural foramen to decompress exiting nerve roots.
fusion rate
Percentage of patients achieving solid bony union following spinal fusion surgery.
grade of listhesis
Classification system measuring the degree of vertebral displacement in spondylolisthesis.
Grade V spondylolisthesis
Complete anterior displacement of one vertebra over another, representing the most severe form of spondylolisthesis.
Harrington rod
A historical spinal instrumentation system using distraction rods for scoliosis correction, largely superseded by modern...
iliac crest bone graft
Autologous bone harvested from the patient's iliac crest, considered the gold standard for spinal fusion procedures.
instrumentation
Metallic hardware system used to stabilize the spine during fusion procedures.
interbody cage
Structural implant placed in the disc space to maintain height and facilitate fusion.
interbody height restoration
Surgical goal of restoring normal disc space height through interbody cage placement.
interspinous process device
Motion-preserving implant placed between adjacent spinous processes to limit extension while maintaining flexion.