8.0MM ACL INTERFERENCE SCREW,CANNULATED
The 7.0mm and 8.0mm ACL (Anterior Cruciate Ligament) interference screws, cannulated (Polyether ether ketone), are specialized orthopedic implants used in anterior cruciate ligament reconstruction surgeries. Here's a breakdown of their specifications and uses:
Specification
- Size: The size specifications denote the diameter of the screw, with 7.0mm and 8.0mm options available. This dimension is crucial for ensuring proper fit and stability within the bone tunnel.
- Material: The screws are made of cannulated , a biocompatible polymer known for its strength, durability, and compatibility with MRI imaging, making it an ideal choice for orthopedic implants.
- Design: The screws feature a cannulated design, meaning they have a hollow central channel that allows for the passage of a guide pin during insertion. This design aids in precise placement and fixation of the graft during ACL reconstruction surgery.
Uses
- ACL Reconstruction: These interference screws are primarily used in ACL reconstruction surgeries. During this procedure, the torn ACL is replaced with a graft, typically harvested from the patient's hamstring tendon or patellar tendon. The interference screw is used to secure the graft in place within the bone tunnels drilled in the femur and tibia.
- Biomechanical Stability: The screws provide biomechanical stability by compressing the graft against the bone tunnel walls, promoting graft incorporation and facilitating the healing process. This compression helps to prevent graft laxity and maintain knee stability.
- Cannulated Design: The cannulated design allows for precise placement of the screw over a guide pin, which is inserted through the center of the graft. This facilitates accurate positioning of the graft and screw within the bone tunnels, optimizing fixation and enhancing surgical outcomes.
- Material Benefits: Cannulated screws offer several advantages, including biocompatibility, radiolucency (allowing for clear imaging during follow-up), and resistance to corrosion and wear. Additionally, 's elastic modulus is closer to that of bone compared to metallic screws, potentially reducing stress shielding and improving long-term outcomes.
- Surgical Technique: Surgeons use specialized instruments and techniques to prepare the bone tunnels and insert the interference screws during ACL reconstruction surgery. Careful attention to detail is essential to ensure proper graft tensioning and fixation, ultimately leading to successful outcomes and patient rehabilitation.
In summary, the 7.0mm and 8.0mm ACL interference screws, cannulated , are crucial implants used in ACL reconstruction surgeries to provide stable fixation of the graft within the bone tunnels, promoting graft healing and restoring knee stability. Their cannulated design and material offer several advantages, making them popular choices for orthopedic surgeons performing ACL reconstruction procedures.