Fixing device and method for integral reconstruction of anterior cruciate ligament and anterolateral ligament

Abstract

The invention provides a fixing device for ACL (anterior cruciate ligament) and ALL (anterolateral ligament) integrated reconstruction and a usage method. The fixing device comprises a flexible long-strip-shaped body and a flexible annular body connected with the flexible long-strip-shaped body, wherein the annular body is connected with an ACL, and the long-strip-shaped body is used as an ALL. The usage method comprises steps as follows: firstly, the annular body is connected with the ACL; then the long-strip-shaped body is introduced from a thighbone lower insertion bone tunnel and passes through a thighbone upper insertion bone tunnel; finally, the long-strip-shaped body is fixed with an ALL lower insertion bone tunnel. The fixing device can deform elastically and has a certain protecting effect to enable the motion capacity to be restored to the initial level. Meanwhile, only one device is required for realizing fixing for ACL and ALL integrated reconstruction, particularly, the number of formed bone tunnels is reduced, the time is shortened, and the comfort of a patient is improved.

Description

technical field [0001] The invention relates to the technical field of medical device design for ligament reconstruction, in particular to a fixing device and a use method for integral reconstruction of anterior cruciate ligament and anterolateral ligament. Background technique [0002] The knee joint is one of the largest and most complex joints in the human body. In actual motion, it is not only a simple extension and flexion movement, but also a series of complex three-dimensional movements such as the rotation of the tibia, and the rolling and sliding of the femoral ankle on the tibia. And this series of complex movements all rely on the tendons and ligaments around the knee joint to maintain the balance and stability of the joint during movement. The anterior cruciate ligament (ACL) has the function of restricting tibial anterior displacement and regulating partial rotation. [0003] However, what has troubled many doctors and patients for many years is that after repa...

AI Technical Summary

Problems solved by technology

The tibial canal of ALL is almost parallel to the articular surface, because the insertion point of the ALL tibia is only 1cm away from the articular surface, and the distance between the tibial canal and the articular surface is too close, which may damage the articular surface during the operation, and may also lead to articular subchondral bone after surgery. Poor quality, easy to cause cartilage degeneration, and easy to cause fractures when the knee joint is injured again

[0006] 2. When ACL and ALL are reconstructed at the same time (ALL is seldom damaged alone, in most cases it is damaged at the same time as ACL), two grafts are needed, but in fact each graft is not fully utilized, resulting in unnecessary waste

Since most foreign doctors choose allogeneic tendon when reconstructing ALL, the operation cost is greatly increased

[0007] 3. The operation time is long, because two grafts need to be braided, and four bone tunnels need to be prepared at the same time. The operation is more complicated and the operation time is prolonged. At the same time, more fixatives and grafts increase the incidence of surgical complications

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