INTRAOSSEOUS SUTURE THREAD FIXATION DEVICE

Sometimes, damage occurs to the meniscus root, requiring the anatomical position of the meniscus to be restored for the knee to function properly. 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 creation of a tunnel through part of the tibia to reach the meniscal root. To fix the meniscal root in position, once sutured, the thread must be passed through this tunnel. It has been found that the length of thread required to cover the entire tunnel is so great that it causes displacement of the meniscal root, preventing it from being fixed in the desired position and thus altering the biomechanical functioning of the joint and hindering subsequent healing. The present invention consists of a knotless device that solves the aforementioned problem, together 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 root position, minimising the length of the thread. To this end, 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 perform the screw fixation manoeuvre in the tunnel.