Pedicle Screw

Patients who undergo back surgery to fuse vertebrae may be implanted with pedicle screws. Pedicles are the bottom portion of vertebrae that protrude downward to link these bones to the rest of the spinal column. They form a natural trough for the neural arch, the space where the spinal-cord nerves lie. They also act as a double-pronged fulcrum for the rotational movement of the vertebrae.

When spinal surgery is indicated, however, it is generally the movement of weakened or damaged vertebrae that is causing pain or a bone-growth deformity. Pedicle screws take advantage of the mass and shape of the pedicle to immobilize a portion of the vertebral column. One or more vertebrae may be altered with pedicle screws in an attempt to restore skeletal equilibrium and eradicate pain.

The Use of Pedicle Screws Versus Other Corrections

Conditions that might precipitate spinal-fusion surgery are scoliosis, degenerative-disc disease and traumatic injury from a blow or impact. Doctors evaluate pain that has become chronic over time and locate the offending areas of the spine. If their diagnosis is correct, they may insert pedicle screws during open-back surgery and monitor the area for subsequent fusion.

Incorrect diagnosis, incorrect placement of spinal stabilizers or inadequate fusion can cause pedicle screws to fail. The specialists at the Bonati Institute have seen many such cases and are adept at redirecting spinal evaluations. Their state-of-the-art, proprietary surgeries can help to relieve the effects of failed open-back surgery.