Cannulated Cancellous Screw 7.0mm X 70mm Dia. 16mm Thread SS316L Orthopedic

The Orthopedic Cannulated Cancellous Screw with the specifications 7.0mm x 70mm, 16mm thread, and SS316L material is designed for orthopedic use, primarily in the fixation of fractures in cancellous (spongy) bone. Below is a detailed breakdown of its features:

Specifications Breakdown:
7.0mm Diameter: The screw has a diameter of 7.0 millimeters, which is a substantial size for orthopedic screws, ensuring strong fixation in larger or denser bones like the femur, tibia, or pelvis. The larger diameter provides a stable and secure grip, especially in cancellous bone, which is softer and more porous than cortical bone.

70mm Length: The screw measures 70 millimeters in length, making it suitable for fractures located deeper in the bone or in areas requiring longer screws for secure fixation. The length is chosen based on the size and location of the fracture as well as the bone anatomy.

16mm Thread: The threaded portion of the screw extends 16 millimeters. This length of the thread is designed to engage the bone effectively, especially in cancellous bone where the threads need to be spaced further apart to provide a firm grip in the softer bone.

Cannulated: The screw is cannulated, meaning it has a hollow center. This feature allows for the use of a guidewire, which helps the surgeon position the screw precisely. The cannulated design is particularly useful in minimally invasive procedures, reducing the need for large incisions and minimizing trauma to surrounding tissues.

Cancellous Screw: Cancellous screws are specifically designed for use in cancellous (spongy or trabecular) bone, which is softer and more porous than cortical bone. These screws have larger threads spaced further apart to help anchor the screw securely in the softer, more porous bone tissue.

SS316L (Stainless Steel 316L): The screw is made from 316L stainless steel, a high-grade alloy that is corrosion-resistant and durable. The “L” in SS316L stands for “low carbon,” which makes it more resistant to corrosion. SS316L is biocompatible, meaning it is well-tolerated by the human body and minimizes the risk of adverse reactions or infections. This makes it ideal for long-term implantation.

Typical Uses:
This screw is used for:

Fracture Fixation: Particularly in cancellous bone (e.g., femur, tibia, pelvis, distal radius) where the bone is softer and spongier. The screw helps stabilize the fracture and promotes healing.
Osteotomies: When bones are cut and realigned to correct deformities or improve joint function.
Spinal Fixation: For stabilizing vertebrae during spinal surgeries, particularly in areas of the spine with cancellous bone.
Advantages of Cannulated Stainless Steel Screws:
Minimally Invasive: The cannulated design allows for precise screw placement over a guidewire, reducing the need for large incisions and minimizing tissue damage. This speeds up recovery time and reduces the risk of complications.
Strength and Durability: SS316L stainless steel provides excellent strength, durability, and resistance to corrosion, making it ideal for implants that need to endure the mechanical stresses of the human body.
Biocompatibility: SS316L is highly compatible with human tissues, reducing the risk of immune reactions, infections, or other complications, which is crucial for long-term implants.
Conclusion:
The 7.0mm x 70mm Cannulated Cancellous Screw made from SS316L stainless steel is an ideal implant for securing fractures in cancellous bone. Its large diameter (7.0mm) and 16mm threaded portion provide strong fixation, while the 70mm length ensures deep engagement in larger bones. The cannulated design allows for precise placement with minimal invasiveness, aiding in faster recovery. The use of SS316L stainless steel guarantees strength, corrosion resistance, and biocompatibility, making it suitable for long-term use in orthopedic surgeries. This screw is highly effective for fracture stabilization and bone realignment in various orthopedic procedures.