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Method for fixing graft in knee joint cruciate ligament reconstruction

A technology of cruciate ligament and fixation method, which is applied in the direction of ligament and muscle to avoid cutting, facilitate the healing of tendon and bone, and avoid the effect of host immune response

Inactive Publication Date: 2017-07-21
南京市六合区人民医院
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Problems solved by technology

[0008] The technical problem to be solved by the present invention is: aiming at the technical problems existing in the prior art, the present invention provides a method for fixing the graft in the cruciate ligament reconstruction of the knee joint, which is more conducive to tendon-bone healing and can produce greater fixation strength , which can avoid the disadvantages of exogenous cells causing host immune response and low transformation efficiency

Method used

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Embodiment 1

[0028] The fixation method of graft in knee cruciate ligament reconstruction of the present invention comprises the following steps:

[0029] (1) Braid and suture the two ends of the transplanted tendon with wires, select two absorbable expansion screws, the absorbable expansion screws are combined with nano-hydroxyapatite carrier by BMP-2 by absorption method and compounded with polyethylene levorotation by double emulsion method Slow-release microspheres prepared from lactide combined with autologous hamstring tendon grafts.

[0030] (2) Femoral tunnel: flex the knee joint 120°, choose the direction of 10 o'clock on the right knee or 2 o'clock on the left knee, and use the femoral locator, 6 mm away from the cartilage wall of the posterior femoral condyle.

[0031] (3) A guide pin with nostrils was driven into the center of the original femoral insertion point of the ACL, and a hollow drill was used to make the femoral bone tunnel along the direction of the guide pin.

[00...

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Abstract

The invention discloses a method for fixing a graft in cruciate ligament reconstruction of the knee joint, which comprises the following steps: (1) braiding and suturing the two ends of the grafted tendon with wires, and selecting two expansion screws; (2) making a femoral tunnel; (3) ) making the tibial tunnel; (4)) threading the guide wire at one end of the transplanted tendon into the guide pin with a coccyx hole, pulling out the guide pin with a coccyx hole and taking out one end of the guide wire, so that the transplanted tendon enters the femoral tunnel and the tibial tunnel; (5) Use tools to push in the expansion sleeve along the femoral bone canal close to the grafted tendon until the tail end of the expansion sleeve enters the femoral bone canal, screw the screws into the expansion sleeve for fixation; (6) use tools to push in the expansion sleeve close to the grafted tendon along the tibial bone canal When the tail end of the expansion sleeve enters the tibial bone canal, screw the screw into the expansion sleeve for fixation. The graft fixation method in knee cruciate ligament reconstruction of the present invention is more conducive to tendon-bone healing, can produce greater fixation strength, and can avoid the disadvantages of host immune response caused by exogenous cells and low transformation efficiency.

Description

technical field [0001] The invention relates to the technical field of medical devices in living bodies, in particular to a method for fixing grafts in knee joint cruciate ligament reconstruction. Background technique [0002] The anterior cruciate ligament (ACL) of the knee joint is one of the important static and dynamic stability structures of the knee joint, which can prevent tibial anterior displacement, hyperextension and hyperrotation, and prevent related complications after knee joint instability. ACL injury is a common and frequently-occurring disease, which mainly plagues the majority of adolescents and is one of the most common diseases among adolescents. The incidence of ACL injury is very high, especially for people over the age of 16. According to epidemiological surveys, the incidence of ACL rupture is about 0.035%. In recent years, with the popularization of national sports and more and more teenagers participating in sports activities, the incidence of such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/08
CPCA61F2/0811A61F2002/0858
Inventor 刘玉宝林福庆赵清华郭玉祥林禄攀邹瑞蔡小林温传阳施中平张帆胡桂花
Owner 南京市六合区人民医院
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