Suture thread intraosseous restraint device

Sometimes, damage occurs in the meniscal root, forcing the anatomical position of the meniscus to be restored for the proper functioning of the knee. There are essentially two techniques for this: in situ repair and transosseous repair. The advantages of transosseous repair over the in situ technique have been extensively documented. However, this type of repair requires the carving of a tunnel that crosses part of the tibia until it reaches the meniscal root. To fix the meniscal root in its position, once sutured, the thread must be passed through the tunnel. It has been found that the length of thread needed to cover the entire tunnel is so long that it brings with it displacements in the meniscal root, causing it not to be fixed in the desired position and, therefore, altering the biomechanical functioning of the joint and hindering subsequent healing. The present invention consists of a knotless device that solves the aforementioned inconvenience along with the tools for its surgical implantation. The device consists of a screw that has the particularity of being able to be fixed at the end of the tunnel closest to the position of the root, reducing the length of the wire to a minimum. To do this, it has an elastic mechanism that not only allows the thread to be shortened, but also facilitates the measurement of the tension applied to it. Two devices are also included to execute the screw fixing manoeuvre in the tunnel.

The device is designed to improve meniscal root repair in arthroscopic surgery, allowing for a more stable and controlled fixation of the meniscus in its anatomical position. Its ability to shorten and tighten the suture thread precisely makes it especially useful in transosseous procedures, where the length of the tibial tunnel can compromise clinical outcomes.
This system is applied in the field of traumatology and orthopaedic surgery, with special relevance in sports injuries and meniscal preservation procedures. Its compatibility with current surgical techniques facilitates its adoption in hospitals, trauma clinics and centers specialized in knee surgery. The device fits fully into the markets for arthroscopic implants, meniscal repair devices and orthopedic instruments, growing sectors where there is a growing demand for solutions that improve the stability, reproducibility and biomechanical efficiency of meniscal repairs.



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