Cannulated Cancellous Screw 7.0mm X 110mm Dia. 16mm Thread SS316L Orthopedic

The Orthopedic Cannulated Cancellous Screw with the specifications 7.0mm x 110mm, 16mm thread, and SS316L material is a specialized implant designed for orthopedic procedures, especially for the fixation of fractures in cancellous (spongy) bone. Below is a detailed breakdown of its features and applications:

Specifications Breakdown:
7.0mm Diameter: The screw has a diameter of 7.0 millimeters, which is considered large for orthopedic screws. This large diameter ensures strong and stable fixation in larger bones like the femur, tibia, or pelvis, which require a screw with substantial size to provide support. The large diameter helps the screw to securely anchor in cancellous bone, which is softer and more porous than cortical bone.

110mm Length: The screw measures 110 millimeters in length, making it suitable for fractures located deeper within the bone or in larger bones that require longer screws for a secure hold. The length ensures that the screw can anchor securely within cancellous bone, offering enhanced stability to fractures in larger bones or areas that require deeper penetration.

16mm Thread: The threaded portion of the screw is 16 millimeters long. This portion engages the cancellous bone and provides a secure fixation by embedding itself into the porous structure of the bone. The larger thread length is especially useful for ensuring stability in softer, spongier bone types.

Cannulated: The screw is cannulated, meaning it has a hollow core. This hollow center allows for the screw to be inserted over a guidewire, facilitating precise and controlled placement. The cannulated design is particularly advantageous in minimally invasive surgery, as it reduces the need for large incisions and minimizes trauma to surrounding tissues.

Cancellous Screw: The screw is designed specifically for use in cancellous (spongy or trabecular) bone, which has a softer, more porous structure compared to cortical bone. Cancellous screws are typically designed with larger, widely spaced threads to provide a firm grip within this type of bone and to prevent screw loosening or displacement.

SS316L (Stainless Steel 316L): The screw is made from 316L stainless steel, a high-grade, corrosion-resistant material that is commonly used in orthopedic implants. The “L” in SS316L stands for “low carbon,” which makes the material more resistant to corrosion, ensuring the implant’s durability over time. SS316L is biocompatible, meaning it integrates well with the body and is highly unlikely to cause allergic reactions or other complications.

Typical Uses:
This screw is commonly used for:

Fracture Fixation: Especially in cancellous bone, such as the femur, tibia, pelvis, or distal radius, where the bone structure is softer and more porous. The screw helps stabilize fractures and supports the healing process.
Osteotomies: In procedures where bone is cut and realigned, such as joint realignment or correction of deformities.
Spinal Fixation: For stabilizing vertebrae during spinal surgeries, especially in areas of the spine with cancellous bone, such as the vertebral body.
Advantages of Cannulated Stainless Steel Screws:
Minimally Invasive: The cannulated design allows the screw to be placed over a guidewire, enabling more precise placement with smaller incisions. This reduces soft tissue trauma and promotes faster recovery compared to traditional techniques.
Strength and Durability: SS316L stainless steel is known for its strength, resistance to mechanical stress, and durability, ensuring that the screw will remain intact and functional over time.
Corrosion Resistance: The “low carbon” nature of SS316L stainless steel makes it highly resistant to corrosion, which is crucial for implants that will remain inside the body long-term.
Biocompatibility: SS316L is highly biocompatible, reducing the risk of immune reactions, infections, or rejection. This makes it a preferred material for implants that need to integrate with bone over an extended period.
Conclusion:
The 7.0mm x 110mm Cannulated Cancellous Screw made from SS316L stainless steel is an ideal solution for securing fractures in cancellous bone. The large 7.0mm diameter and 16mm threaded portion provide strong, stable fixation in spongy bone. The 110mm length ensures that the screw can reach deeper fractures or engage with larger bones. The cannulated design facilitates precise placement with minimal invasion, reducing recovery time and promoting quicker healing. The use of SS316L stainless steel ensures that the screw is durable, corrosion-resistant, and biocompatible, making it a reliable choice for long-term orthopedic procedures. This screw is highly effective for stabilizing fractures, osteotomies, and spinal fixation in various orthopedic surgeries.