Pedicle Screw

Specifications - Pedicle Screw

Pedicle Screw are used in a spinal fusion to add extra support and strength to the fusion while it heals. The screws themselves do not fixate the spinal segment, but act as firm anchor points that can then be connected with a rod.

Pedicle Screw allow for multi-directional movement or angulation between the screw head and screw body. Unlike fixed-angle screws, which have a defined angle between the head and body, Pedicle Screw allow surgeons to alter the screw trajectory within a given range of motion. This adaptability gives you more options for adapting specific patient anatomy and optimising screw placement.

Sizes and Uses of Pedicle Screw

Pedicle Screws are available in various diameters and lengths.
Diameters: 4.5mm, 5mm, 5.5mm, 6.5mm and 7mm.
Lengths: 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm and 60mm

Pedicle Screw System intended to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion in the treatment of the following acute and chronic instabilities or deformities of the thoracic, lumbar, and sacral spine: degenerative spondylolisthesis with objective evidence of neurologic impairment, fracture, dislocation, scoliosis, kyphosis, spinal tumor, and failed previous fusion

Polyaxial Pedicle Screw are placed above and below the vertebrae that were fused. A rod is used to connect the screws which prevents movement and allows the bone graft to heal. After the bone graft grows, the screws and rods are no longer needed for stability and may be safely removed with a subsequent back surgery. Removal isn’t necessary unless they cause the patient discomfort.

Pedicle Screws have transformed orthopaedic and spinal surgery by allowing for greater flexibility and adjustment during screw placement. Their ability to fit specific patient anatomy and optimise screw trajectory helps to increase fusion rates, stability, and spinal deformity repair. However, careful surgical planning, skill, and follow-up are required to maximise the advantages while minimising the hazards associated with these cutting-edge technologies.

Placement Ease: The polyaxial design makes screw placement easier, especially in difficult anatomical locations. Surgeons can coordinate the screw trajectory with the target anatomy, improving accuracy and lowering the chance of incorrect screw location.

Reduced Screw Strain: Pedicle Screw evenly disperse forces along their length. This design decreases tension and pressure on the screw-bone interface, reducing the likelihood of screw loosening or breaking over time.

Improved Fusion Rates: Pedicle Screw can help enhance fusion rates by allowing for appropriate screw positioning. The ability to customise screw trajectory enables surgeons to achieve better contact between the screw and bone, resulting in increased stability and the likelihood for successful fusion.