CERVAICAL BONE SCREW , SELF TAPPING
A cervical bone screw, self-drilling, is a type of orthopedic implant used in cervical spine surgeries to provide stabilization and fixation of the cervical vertebrae. Here's an overview of its specifications and uses:
Specification
- Material: Cervical bone screws are typically made from medical-grade titanium or titanium alloy. This material is chosen for its biocompatibility, strength, and durability, ensuring compatibility with bone tissue and long-term stability within the spinal construct.
- Thread Design: Self-drilling cervical bone screws have a specialized design that allows them to create their own pilot hole as they are inserted into the bone. This eliminates the need for pre-drilling and simplifies the surgical procedure.
- Diameter: The diameter of cervical bone screws may vary depending on the specific surgical technique and patient anatomy. Common diameters for cervical screws range from 3.5mm to 4.5mm, with larger diameters providing increased stability and pull-out strength.
- Length: Cervical bone screws come in various lengths to accommodate different bone thicknesses and surgical requirements. The length of the screw is selected based on factors such as the depth of the bone fragment being stabilized and the desired purchase within the bone.
- Head Design: The head of the cervical bone screw may have various configurations, including a hexagonal, torx, or Phillips design. The choice of head design depends on surgeon preference and the instrumentation system being used.
Uses
- Spinal Fusion Surgery: Cervical bone screws, self-drilling, are primarily used in cervical spine fusion surgeries to provide stabilization and fixation of the cervical vertebrae. They serve as anchors for spinal instrumentation such as plates, rods, and connectors, facilitating the fusion of adjacent vertebrae.
- Correction of Spinal Deformities: These screws may be used in the correction of spinal deformities such as cervical kyphosis or cervical scoliosis. By providing stable fixation, cervical bone screws help to realign the cervical spine to a more anatomically correct position.
- Trauma Surgery: Cervical bone screws can be employed in the treatment of traumatic injuries to the cervical spine, such as fractures or dislocations. They provide additional stability and support to the injured vertebral segments, aiding in fracture reduction and promoting healing.
- Revision Surgery: These screws may be used in revision cervical spine surgeries to augment or replace existing instrumentation. They can provide additional stability and support in cases where previous instrumentation has failed or requires modification.
- Minimally Invasive Surgery: In minimally invasive cervical spine surgeries, self-drilling cervical bone screws with a low-profile design are used to minimize tissue disruption and facilitate less invasive approaches. They allow for stabilization of the spinal instrumentation system while preserving adjacent anatomical structures.
In summary, cervical bone screws, self-drilling, are essential instruments in cervical spine surgeries, providing stability, alignment, and fusion across the cervical vertebrae. They are utilized by trained spinal surgeons following proper surgical techniques and patient-specific considerations to achieve successful fusion and stabilization of the cervical spine.