REDUCTION MONO AXIAL SCREW (HA COATED)
Reduction monoaxial screws, also known as compression monoaxial screws, are specialized orthopedic implants designed to facilitate compression and stabilization of fractures or fusion sites during surgical procedures. Here's a breakdown of their specifications and uses:
Size
- Diameters: 4.5mm, 5mm, 5.5mm, 6.5mm and 7.5mm.
- Lengths: 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm and 60mm
Specification
- Material: Reduction monoaxial screws are typically made of medical-grade titanium or titanium alloy, known for their biocompatibility and mechanical strength. This material ensures durability and compatibility with bone tissue.
- Design: These screws feature a monoaxial design, meaning they can be inserted along a single axis or direction. However, what sets them apart is their ability to facilitate compression at the fracture or fusion site. They often have a unique head design or mechanism that allows for controlled compression of the bone segments upon tightening.
- Thread: Like standard monoaxial screws, reduction monoaxial screws have a threaded shaft for fixation into bone tissue. The threads provide stability and grip, ensuring secure anchoring of the screw.
- Coating: Reduction monoaxial screws may be coated with hydroxyapatite (HA) to promote osseointegration and enhance bone healing around the implant. The HA coating helps facilitate a strong bond between the screw and surrounding bone tissue, aiding in the stabilization and fusion process.
- Size: Reduction monoaxial screws come in various lengths and diameters to accommodate different patient anatomies and surgical requirements.
- Compression Mechanism: These screws are equipped with a mechanism or feature that enables controlled compression of the bone segments upon screw insertion and tightening. This compression helps promote alignment, stability, and ultimately, the healing process
Uses
- Fracture Fixation: Reduction monoaxial screws are primarily used in the fixation of fractures, particularly in long bones such as the femur, tibia, or humerus. By facilitating compression at the fracture site, these screws help align and stabilize the fractured bone segments, promoting faster healing and reducing the risk of malunion or nonunion.
- Spinal Fusion Surgery: These screws may also be employed in spinal fusion procedures, especially in cases where compression across the fusion site is desired to promote bone healing and fusion. They can be used in conjunction with rods, plates, or other spinal implants to provide compression and stabilization of the vertebral segments during fusion surgery.
- Nonunion Treatment: Reduction monoaxial screws can be utilized in the treatment of nonunions, which are fractures that fail to heal despite appropriate treatment. By facilitating compression at the nonunion site, these screws help promote bone healing and union, addressing the underlying cause of nonunion.
- Osteotomies: In corrective osteotomy procedures, where bone segments are intentionally cut and realigned to correct deformities, reduction monoaxial screws may be used to stabilize the bone segments in the corrected position. The compression provided by these screws aids in maintaining alignment and promoting healing of the osteotomy site.
Reduction monoaxial screws play a crucial role in orthopedic surgery, particularly in situations where compression and stabilization are essential for successful fracture healing, fusion, or correction of deformities. They are utilized by trained orthopedic surgeons following proper surgical techniques and patient-specific considerations.