Tension-reducing line for cruciate ligament reconstruction and knitting method thereof

Abstract

The invention relates to a tension-reducing suture for cruciate ligament reconstruction and a knitting method thereof and belongs to the technical field of anterior and posterior cruciate ligament reconstruction. The knitting method comprises five major steps of suture preparation, suture fixing, initial knitting, medium-term knitting and ending knitting. According to the tension-reducing suture for the cruciate ligament reconstruction and the knitting method thereof, a single suture is placed in the middle of a transplanted tendon after the suture is knitted. The knitting method can not only improve the intensity and overcome the disadvantage that a tension-reducing suture is prone to breakage at the early stage, but also play the role of internal fixation of the tension-reducing suture. During the period of ligament shaping and reconstruction, excessive stress simulation is prevented from being applied to constructed ligaments to prevent the constructed ligaments from being pulled long, so that constructed ligament healing is facilitated. Moreover, the diameter of the reconstructed ACL or PCL can be moderately increased to enable the ACL or PCL to be attached to the internal surface of a bone tunnel as much as possible to allow bone-tendon to be healed well as soon as possible.

Description

technical field [0001] The invention belongs to the technical field of reconstruction of anterior and posterior cruciate ligaments, and in particular relates to a tension-reducing thread for reconstruction of anterior and posterior cruciate ligaments and a weaving method thereof. Background technique [0002] In recent years, with the rapid development of sports in my country and the extensive development of national fitness campaigns, injuries to the Anterior Cruciate Ligament (ACL) or Posterior Cruciate Ligament (PCL) of the knee joint have gradually increased. The function of the cruciate ligament is very important. If the ACL or PCL of the knee joint is injured, the stability of the knee joint will be seriously affected and the degeneration of the knee joint will be accelerated. Currently, arthroscopic ACL or PCL reconstruction surgery is often used for patients with functionally unstable anterior and posterior cruciate ligament ruptures, and has become the mainstream me...

AI Technical Summary

Problems solved by technology

[0004] Some studies have reported that the reconstruction of the anterior and posterior cruciate ligaments is carried out using the tension-reducing technique within the transplanted tendon, that is, adding a tension-reducing line to the grafted tendon for ACL or PCL reconstruction and early rehabilitation training, which ensures the smooth progress of early rehabilitation training. The results show that the Technology can prevent the reconstructed ligament from being elongated, thereby improving the clinical efficacy. However, many studies have found that in the early rehabilitation process after ACL or PCL reconstruction, when the patient bends the knee to a certain angle, there is a sound in the joint, and then the knee bends more smoothly. In this case, it was confirmed that the tension-reducing line was broken after early arthroscopic exploration, which was caused by the insufficient strength of the tension-reducing line, and the tension-relieving effect could not be fully exerted.

The inventors of the present application found after research that in the process of ACL or PCL reconstruction, there is a certain difference in the stability of the knee joint whether the ACL or PCL is reconstructed with the tension reduction technique

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