Screw for Ligament Fixation

The commercial models that make up the Ligament Fixation Screw family are defined as fixation devices classified as long-term surgically invasive medical devices.

The implants are manufactured from Ti-6Al-4V Titanium Alloy (ASTM F136-2008), considered an ideal material for implants and known for its excellent biocompatibility and corrosion resistance in the biological environment.

The Ligament Fixation Screw was developed for Anterior Cruciate Ligament (ACL) Reconstruction. It can be used in the distal femur and proximal tibia.

The surgical procedure known as Ligament Reconstruction can be performed using the conventional or arthroscopic surgical technique, in which two types of autologous grafts can be used as a substitute for the injured ligament: patellar tendon or semitendinosus and gracilis, fixed with an interference screw at the tibial and femoral ends, or by fixation with a transverse screw in the distal region of the femur and an interference screw in the proximal region of the tibia.
The implants are available in a range of diameters and lengths to provide the surgeon with a choice for the various body types in ligament reconstruction procedures. They are available in diameters of 6, 7, 8, 9, 10 and 11mm and lengths of 20, 25, 30, 35 and 40mm for the Interference Screws, and in a diameter of 6.5mm and lengths of 30, 35, 40, 45, 50, 55, 60, 65 and 70mm for the Transverse Screws.

The screws are cannulated to allow passage of the guide wire used to guide the surgeon during the surgical procedure; they have a rounded head with a hexagonal socket to which the screwdriver is coupled for insertion and fixation of the screw, and the screw body is fully threaded. The Transverse Screw has an unthreaded region used for graft anchorage and, at one of its ends, a thread for insertion and fixation to the bone. The implants are anodized in different colors for better identification by the surgeon, as follows: Ti Interference Screw anodized in yellow; Ti 2E Interference Screw anodized in brown; Ti PB Interference Screw anodized in blue; Ti PC Interference Screw anodized in lilac; Ti PR Interference Screw anodized in graphite and Ti Transverse Screw anodized in graphite

The commercial models that make up the Ligament Fixation Screw family are indicated for surgical procedures for Anterior Cruciate Ligament Reconstruction, in the following regions: distal femur and proximal tibia.

The success of the procedure depends on the correct selection, positioning and fixation of the implants, which is the responsibility of the physician who evaluates the patient and decides which materials should be used; it also depends on strict compliance with the postoperative care recommended by the responsible physician.
The criteria for selecting the type and size of the implants to be used will depend on the condition of the bone and on the technique to be adopted to perform the procedure. These conditions are the responsibility of the physician who evaluates the patient and decides which materials should be used.
The implants were designed for use in the circumstances described above, so any other use is considered contraindicated or without scientific basis.

Titanium Alloy ASTM F136