Cancellous Screw 6.5mm X 55mm Dia. Full Thread Self Tapping SS316L Orthopedic

The Orthopedic Cancellous Screw with the specifications 6.5mm x 55mm, full thread, self-tapping, and SS316L material is an implant designed for orthopedic procedures, specifically for the fixation of fractures in cancellous (spongy) bone. Here’s a detailed breakdown of its features:

Specifications Breakdown:
6.5mm Diameter: The screw has a diameter of 6.5 millimeters, making it suitable for smaller to medium-sized bones or fractures. This diameter allows for strong fixation in cancellous bone while still being small enough for use in bones that require a more moderate-sized screw, such as in smaller bones of the limbs or in certain spinal applications.

55mm Length: The screw is 55 millimeters long. This length is suitable for fractures that are located in shallower areas of the bone, or where a more moderate screw length is needed to ensure sufficient fixation. The length may vary depending on the location of the fracture and the patient’s bone size.

Full Thread: The screw is full-threaded, meaning the threads extend along the entire length of the screw. Full-threaded screws provide more grip in cancellous bone by fully engaging with the spongy, trabecular bone structure, providing maximum stability. Full threads are particularly beneficial in cases where the bone needs to be anchored firmly along the entire length of the screw.

Self-Tapping: This screw is self-tapping, which means it is designed to cut its own threads into the bone as it is inserted. This eliminates the need for pre-drilling a hole, simplifying the surgical procedure and reducing the amount of time and effort needed for screw placement. Self-tapping screws are beneficial because they improve insertion accuracy and reduce the risk of damage to surrounding bone tissue.

Cancellous Screw: Cancellous screws are specifically designed for use in cancellous bone (spongy or trabecular bone). Cancellous bone is softer and more porous than cortical bone, requiring screws with large, widely spaced threads to achieve stable fixation. These screws are specially designed to anchor securely in the softer, less dense bone tissue.

SS316L (Stainless Steel 316L): The screw is made from 316L stainless steel, a high-grade, medical-grade alloy known for its excellent corrosion resistance, strength, and biocompatibility. The “L” stands for low carbon, which improves the material’s resistance to corrosion, making it ideal for long-term use in the body. SS316L is durable and can withstand the stresses that the bone experiences during healing and weight-bearing activities.

Typical Uses:
This screw is primarily used for:

Fracture Fixation: Particularly in cancellous bone, such as the femur, tibia, distal radius, or other bones where cancellous bone is present. The screw stabilizes the fracture and helps the bone heal properly.
Osteotomies: In surgeries where bone is cut and realigned to correct deformities or improve joint function.
Spinal Fixation: In spinal surgeries where cancellous bone is involved in the vertebral body, the screw provides stability for proper bone fusion.
Advantages of Full Thread, Self-Tapping Cancellous Screws:
Minimally Invasive: Self-tapping screws eliminate the need for pre-drilling, which reduces surgical time and minimizes trauma to the bone and surrounding tissues.
Strong Fixation: Full-threaded design ensures maximum engagement with cancellous bone, offering strong and stable fixation, which is critical for fracture healing and preventing screw loosening.
Ease of Insertion: Self-tapping features simplify the insertion process, as the screw cuts its own path into the bone, making it easier to place accurately and securely.
Biocompatibility: SS316L stainless steel is known for its excellent biocompatibility, which reduces the risk of complications such as allergic reactions or infections when the screw is implanted in the body.
Corrosion Resistance: The SS316L material is resistant to corrosion, making the screw durable and capable of withstanding the biological environment inside the body without degradation over time.
Conclusion:
The 6.5mm x 55mm Full-Threaded, Self-Tapping Orthopedic Cancellous Screw made from SS316L stainless steel is an ideal solution for securing fractures in cancellous bone. The 6.5mm diameter and 55mm length make it suitable for a variety of fractures in smaller to medium-sized bones, while the full-thread design ensures maximum engagement with the bone for a stable fixation. The self-tapping feature simplifies insertion by eliminating the need for pre-drilling, reducing surgical time and trauma. The SS316L stainless steel provides the screw with excellent strength, corrosion resistance, and biocompatibility, making it a reliable choice for long-term use in orthopedic procedures. This screw is highly effective for fracture fixation, osteotomies, and spinal surgeries in areas with cancellous bone.