Internal tension reducing system for cruciate ligament reconstruction and mechanical manufacturing process of internal tension reducing system

Abstract

The invention discloses an internal tension reducing system for anterior and posterior cruciate ligament reconstruction and a mechanical manufacturing process of the internal tension reducing system. The process comprises preparation of raw material stitches, construction and operation processes of a knitting machine and a use method. The double-strand suture is mechanically woven into the internal tension reduction system with certain elasticity and then placed in the center of a transplanted tendon, the internal tension reduction system can further enhance the strength of a graft and overcome the defect that a common single suture is prone to breakage, meanwhile, the internal tension reduction effect is achieved, bad traction stress is avoided in the ligament shaping and reconstruction period, and the survival rate of a ligament is increased. Graft damage is prevented, graft religamentation is facilitated, and rapid recovery of affected knees is facilitated. The mechanical weaving process of the internal tension reducing system can be used for standardized mass production and is convenient for clinical popularization and application.

Description

technical field [0001] The invention belongs to the technical field of anterior and posterior cruciate ligament reconstruction, and in particular relates to an internal tension reduction system for anterior and posterior cruciate ligament reconstruction and a mechanical manufacturing process thereof. Background technique [0002] In recent years, with the rapid development of my country's sports industry and the widespread development of national fitness activities, the anterior cruciate ligament (ACL) or posterior cruciate ligament (PCL) injuries of the knee joint have gradually increased. The function of the cruciate ligament is very important. If the ACL or PCL of the knee is injured, the stability of the knee joint will be seriously affected and the degeneration of the knee joint will be accelerated. At present, arthroscopic ACL or PCL reconstruction surgery is often used for patients with functionally unstable anterior and posterior cruciate ligament ruptures, and it ha...

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 by using the tension-reducing technique within the transplanted tendon, that is, adding a tension-reducing line to the grafted tendon to perform ACL or PCL reconstruction and early rapid rehabilitation training, which ensures the smooth progress of early rehabilitation training. The results show that the Technology can prevent the reconstructed ligament from being loosened, 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. This situation was confirmed to be tension-reducing line rupture after early arthroscopic exploration, which was caused by insufficient strength of the tension-reducing line and elastic modulus that did not conform to the biomechanics of the graft, and its tension-relieving effect could not be fully exerted.

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