Button plate and cruciate ligament reconstruction system and construction method thereof

Abstract

The invention provides a button plate comprising a convex part and a ring plate part, wherein the convex part and the ring plate part are integrally formed or tightly connected; the two end faces of the ring plate portion along the thickness extending direction respectively form a first end face and a second end face; the convex part is convex with respect to the first end surface, and the convexpart is formed with an outer arc surface and an inner arc surface in the convex direction. The first end face and the second end face are respectively connected to the outer arc face and the inner arcface; the button plate is provided with a first seam hole; a first suture hole is formed on the protrusion; alternatively, the first suture hole is simultaneously provided on the protrusion and the ring plate portion. The invention also provides a cruciate ligament reconstruction system comprising the button plate and a construction method thereof. The invention can improve the fixation strengthand rotational stability of the graft on the tibia end in the ligament reconstruction operation, reduce the stress of the graft on the bone tissue, and improve the operation safety and the operation curative effect.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a button plate and cruciate ligament reconstruction system and a construction method thereof. Background technique [0002] There are anterior and posterior cruciate ligaments (also known as cruciate ligaments) in the knee joint. The anterior cruciate ligament starts from the front of the intercondylar eminence of the tibia, and ends on the inner surface of the lateral femoral condyle backward, superior, and outward; the posterior cruciate ligament originates from the intercondylar space of the tibia The rear, front, upper, and medial ends of the bulge end on the outside of the medial femoral condyle. Whether the knee joint is straightened or flexed, the anterior and posterior cruciate ligaments are in tension. The anterior cruciate ligament prevents the tibia from moving forward, and the posterior cruciate ligament prevents the tibia from moving forward. move backwards. [0003] ...

AI Technical Summary

Problems solved by technology

[0004] In cruciate ligament reconstruction, the ligament graft needs to be connected to the femur and tibia after isometric measurement. The femoral end is usually fixed with a structure of hole plate and suture, while the tibial end is expanded by screws and other structures. Extrusion is used to achieve fixation in the bone tunnel. On the one hand, this fixation method will cause the graft in the tibial tunnel to not be in 100% contact with the tunnel, resulting in failure or difficulty in healing the tendon and bone after surgery. Stress concentration in the fixation is prone to bone resorption under stress, leading to expansion of the bone tunnel, which leads to fixation failure and surgical failure

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