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.
ACDF
Anterior cervical discectomy and fusion, a common surgical approach for cervical spine pathology.
adjacent segment disease
Accelerated degeneration or instability occurring at spinal levels adjacent to a previously fused segment.
ALIF
Anterior Lumbar Interbody Fusion - a spine fusion procedure performed from the front approach.
annular tear
A disruption in the fibrous outer ring (annulus fibrosus) of an intervertebral disc that may cause pain or predispose to...
anterior cervical discectomy and fusion
Surgical procedure to remove damaged cervical disc material and fuse adjacent vertebrae via anterior approach.
arthrodesis
Surgical fusion of a joint, commonly performed in spinal surgery to eliminate motion between vertebrae.
atlantoaxial instability
Abnormal movement between the first and second cervical vertebrae (C1-C2), often requiring surgical stabilization.
biomechanical construct
The engineered combination of implants, bone grafts, and anatomical structures designed to restore spinal stability and...
bone morphogenetic protein
Growth factor used to enhance bone formation and fusion rates in spinal surgery procedures.
burst fracture
A high-energy spinal fracture involving failure of both anterior and middle columns with retropulsion of bone fragments...
cage migration
Postoperative displacement of an interbody cage from its intended position, potentially causing complications.
cage subsidence
Migration or sinking of an interbody implant into the adjacent vertebral endplates, compromising fusion and alignment.
canal stenosis
Narrowing of the spinal canal that compresses the spinal cord or cauda equina, distinct from foraminal stenosis.
cauda equina syndrome
A surgical emergency involving compression of the cauda equina nerve roots causing bowel/bladder dysfunction and bilater...
cervical arthroplasty
A motion-preserving surgical procedure that replaces a cervical disc with an artificial disc prosthesis.
cervical myelopathy
Spinal cord dysfunction in the cervical region causing motor and sensory deficits.
chordoma
A rare malignant bone tumor arising from notochordal remnants, commonly affecting the spine and skull base.
Cobb angle
Standard radiographic measurement used to quantify the degree of spinal curvature in scoliosis.
corpectomy
Surgical removal of a vertebral body, typically performed for spinal decompression or tumor resection.
cross-linking
Horizontal connector rods used to enhance spinal construct stability and prevent rotation.
discectomy
Surgical removal of herniated disc material to decompress spinal nerves.
discitis
Infection of the intervertebral disc space, often requiring surgical drainage and antibiotic therapy.
dural ectasia
Abnormal enlargement or ballooning of the dural sac beyond normal anatomical boundaries.
dural repair
Surgical closure of inadvertent or intentional openings in the dura mater during spinal procedures.