Cancellous Screw 6.5mm X 70mm Dia. Full Thread Self Tapping SS316L Orthopedic

The Orthopedic Cancellous Screw with specifications 6.5mm x 70mm, full thread, self-tapping, and SS316L material is an orthopedic implant designed for securing fractures in cancellous (spongy) bone. Here’s a detailed breakdown of its features and potential uses:

Specifications Breakdown:
6.5mm Diameter: The screw has a diameter of 6.5 millimeters, which is suitable for medium-sized bones or fractures. This diameter provides sufficient surface area for stable fixation in cancellous bone, which is softer and more porous than cortical bone. It strikes a balance between providing secure anchorage and being appropriately sized for bones like the femur, tibia, or distal radius.

70mm Length: The screw measures 70 millimeters in length. This length is commonly used for fractures in areas where the bone is moderately thick or where deeper screw penetration is required to achieve secure fixation. The 70mm length ensures that the screw engages enough bone to offer stable support, especially in the case of larger bones or fractures that need more anchorage.

Full Thread: The screw is full-threaded, meaning the threads extend along the entire length of the screw. Full threads provide greater surface contact with the bone, leading to a more stable fixation, particularly in cancellous bone. This design maximizes the screw’s grip in the spongy, trabecular structure of cancellous bone and helps prevent loosening.

Self-Tapping: The screw is self-tapping, meaning it can cut its own threads as it is inserted into the bone. This feature eliminates the need for pre-drilling, which simplifies the surgical process, reduces procedure time, and minimizes trauma to the surrounding bone and tissue. Self-tapping screws allow for precise placement, and their design promotes better integration into the bone.

Cancellous Screw: Cancellous screws are designed specifically for use in cancellous (spongy) bone, which has a softer, more porous structure than cortical bone. These screws typically have larger, widely spaced threads to provide a secure grip in cancellous bone, promoting stability and effective healing after a fracture.

SS316L (Stainless Steel 316L): The screw is made from SS316L stainless steel, a high-grade, medical-grade material known for its strength, durability, and excellent corrosion resistance. The “L” in SS316L stands for low carbon, which enhances the material’s resistance to corrosion, making it ideal for use in the body over extended periods. SS316L is biocompatible, meaning it is well-tolerated by the human body and minimizes the risk of adverse reactions.

Typical Uses:
This screw is used for:

Fracture Fixation: It is commonly used for fractures in cancellous bone, such as those in the femur, tibia, distal radius, or other areas with spongy bone. It helps stabilize fractures and promotes healing by securely holding the bone fragments in place.
Osteotomies: In surgeries where bones are intentionally cut and realigned to correct deformities or improve function, this screw provides stable fixation.
Spinal Fixation: It can be used in spinal surgeries, particularly in the vertebral bodies where cancellous bone is present, to stabilize the spine and promote fusion during procedures like spinal decompression or spinal fusion.
Advantages of Full Thread, Self-Tapping Cancellous Screws:
Minimally Invasive: The self-tapping design eliminates the need for pre-drilling, reducing surgical time and minimizing trauma to surrounding tissues. This promotes quicker recovery and less postoperative pain.
Enhanced Stability: The full-threaded design provides greater surface area contact with the cancellous bone, ensuring a strong and stable fixation. This reduces the risk of screw loosening and enhances the long-term stability of the fracture fixation.
Simplicity and Accuracy: Self-tapping screws are easier and faster to insert compared to non-self-tapping screws because they don’t require pre-drilling. This simplifies the surgical procedure and ensures accurate placement.
Corrosion Resistance: SS316L stainless steel is highly resistant to corrosion, ensuring the screw remains intact and functional over time. This is crucial for implants that remain in the body for long periods.
Biocompatibility: The material used in the screw is biocompatible, reducing the risk of allergic reactions, infections, or other complications. This makes the screw a safe option for long-term implantation in the body.
Conclusion:
The 6.5mm x 70mm Full-Threaded, Self-Tapping Orthopedic Cancellous Screw made from SS316L stainless steel is an effective choice for fracture fixation, osteotomies, and spinal fixation in cancellous bone. The 6.5mm diameter and 70mm length provide the ideal balance of strength and flexibility for medium-sized bones, offering stable and secure fixation. The full-thread design maximizes grip in cancellous bone, and the self-tapping feature simplifies the surgical procedure by eliminating the need for pre-drilling. With the durable, corrosion-resistant SS316L stainless steel, this screw ensures long-term performance, biocompatibility, and stability in the body. This makes it a reliable and effective solution for orthopedic procedures requiring bone fixation.