6.5MM TIBIAL POST FIXATION SCREW
A 6.5mm tibial post fixation screw , also known as a tibial interference screw, is a medical device used in orthopedic surgery, particularly in procedures such as anterior cruciate ligament (ACL) reconstruction. Here are the specifications and common uses of this surgical screw:
Specification
- Size: The screw has a diameter of 6.5mm, referring to the outer diameter of the screw thread. The length of the screw may vary depending on the specific surgical technique and patient anatomy.
- Material: These screws are typically made from titanium (hence the abbreviation "TIT"), which is known for its biocompatibility, strength, and corrosion resistance. Titanium screws are commonly used in orthopedic implants due to these desirable properties.
- Thread Design: The screw features a thread design optimized for fixation within the tibial bone. The threads provide secure engagement with the bone tissue, ensuring stability of the implanted graft or fixation construct.
- Head Design: The screw may have a hexagonal or cylindrical head for ease of insertion using a compatible screwdriver or driver tool. The head design allows for controlled placement and tightening of the screw during surgery.
- Sterilization: Tibial post fixation screws are supplied sterile to ensure safety and prevent the risk of infection during surgical procedures. They are typically packaged individually in sterile packaging.
Uses
- ACL Reconstruction: One of the primary uses of 6.5mm tibial post fixation screws is in ACL reconstruction surgery. During this procedure, the torn ACL (anterior cruciate ligament) is replaced with a graft, often sourced from the patient's own tissue (autograft) or a donor (allograft). The tibial post fixation screw is used to secure the graft in place within the tibial tunnel, facilitating graft integration and promoting stability of the knee joint.
- Other Ligament Reconstructions: Apart from ACL reconstruction, tibial post fixation screws may also be utilized in reconstructive procedures involving other ligaments of the knee, such as the posterior cruciate ligament (PCL) or medial collateral ligament (MCL). The screws aid in securing the grafts or fixation devices used to restore ligament function and joint stability.
- Bone Tendon Bone (BTB) Graft Fixation: In procedures where a bone tendon bone graft is utilized, such as in ACL reconstruction, the tibial post fixation screw may be used to anchor the bone block portion of the graft within the tibial tunnel. This ensures proper positioning and stability of the graft as it heals and integrates with the surrounding bone tissue.
- Revision Surgery: Tibial post fixation screws may also be employed in revision ACL reconstruction surgeries or other revision procedures involving ligament reconstructions. In such cases, the screws aid in reestablishing stability and function in knees with previous surgical interventions.
Overall, 6.5mm tibial post fixation screws are essential orthopedic implants used in ligament reconstruction surgeries, particularly in ACL reconstruction, to securely fixate grafts and restore stability to the knee joint. Their design and material properties are tailored to provide reliable fixation and promote successful outcomes in orthopedic procedures.