Glossary
Bone Graft
There are two kinds of bone grafts. Autograft bone is harvested from one place in a person and then transplanted to another location in the same person. Allograft bone is donated from one person and transplanted to another.
Degenerative Disc Disease (DDD)
The disc loses elasticity and flexibility. It tends to happen over time.
Disc
A fluid-filled, jelly-like cushion between the spine's vertebrae. Discs consist of a nucleus (soft center) and annulus (tough outer rings). Discs are named by vertebrae that surround it. (For instance, the L2-3 disc lies between the L2 and L3 vertebrae.
Discectomy
The surgical procedure that removes damaged disc material from between the vertebrae.
Fusion
The joining or healing of bones in a permanent manner that restricts movement.
Incision
A cut made through the skin and into the body during surgery.
Pedicle
A stem-like area on the back of the vertebra that connects its main part to the lamina that projects from it. There are two pedicles on each vertebra.
Pedicle Screw System
A system of screws and rods that holds the vertebrae stable until fusion occurs.
Scoliosis
A condition by which there is a sideways curve to the spine.
Spinal Fusion Surgery
A procedure to restore and maintain the space between the vertebrae by stabilizing the bones until they can grow together.
Spine
The bony column from the base of the skull to the tailbone. Five regions of vertebrae make up the spine: the cervical, thoracic, lumbar, sacrum, and coccyx.
Stenosis
Describes the condition where the spinal canal narrows and presses on the nerve.
Vertebra
One of 33 bones that constitute the spine. Vertebra are identifed by number in the region it is located. For instance, L3 is the fifth vertebra in the lumbar region.