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The use of a robotic system for the determination and assessment of the 3-bundle ACL reconstruction

使用机器人系统确定和评估 3 束 ACL 重建

基本信息

批准号：
18591643
负责人：
FUJIE Hiromichi
金额：
$ 2.59万
依托单位：
Kogakuin University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2006
资助国家：
日本
起止时间：
2006 至 2007
项目状态：
已结题

项目摘要

A6-DOF robotic system was utilized for the determination and assessment of the 3-bundle ACL reconstruction technique in the present study. During the anterior and posterior force was applied to the human cadaveric knee specimens using the robotic system, the 3-dimensional motion, and force/moment applied to, the knee specimen were recorded. After the anteromedial bundle of the anterior cruciate ligament (ACL) was fransected the recorded 3-dimensional motion was reproduced to the knee specimen while the force/moment applied to the dissected knee were recorded. The same procedure was repeated after the dissection of the intermediate bundle and then the dissection of the posterolateral bundle. Under the principle of superposition, the forces carried by the three bundles were determined. Then the transected ACL was surgically reconstructed by simulating the 3-bundle ACL reconstruction technique using hamstring tendon grafts. Using three force transducers attached to the grafts, the forces carried by the ACL grafts were determined in response to externally applied loads to the knee specimen. In addition, the 3-dimensional motion of the ACL-reconstructed knee was determined. The same procedure was repeated for the knee specimen subjected to the 2-bundle ACL reconstruction technique. Results revealed that the AP laxity of both the triple bundle-and double bundle-reconstructed knee were matched to the intact AP laxity when the initial tension of the total grafts was set 12N. When the initial tension was 12N, the AP laxity was closer to intact level in the triple bundle-reconstructed knee in flexion angles higher than 60 degree. Moreoveg the force carried by the total grafts was lower in the triple bundle-reconstructed knee as compared with double bundle-reconstructed knee. It was suggested that the triple bundle ACL reconstruction may be superior to the traditional single bundle ACL reconstruction as well as the double bundle ACL reconstruction.

在本研究中，A6-DOF 机器人系统用于确定和评估 3 束 ACL 重建技术。在使用机器人系统对人类尸体膝关节样本施加前向力和后向力的过程中，记录了施加到膝关节样本的3维运动和力/力矩。前十字韧带 (ACL) 的前内侧束被横断后，所记录的 3 维运动被再现到膝关节样本上，同时记录施加到被解剖的膝关节上的力/力矩。在解剖中间束然后解剖后外侧束后重复相同的过程。根据叠加原理，确定了三束所承受的力。然后通过使用腘绳肌腱移植物模拟三束 ACL 重建技术，对横切的 ACL 进行手术重建。使用连接到移植物的三个力传感器，根据外部施加到膝关节样本的负载来确定 ACL 移植物所承载的力。此外，还确定了 ACL 重建膝关节的 3 维运动。对接受 2 束 ACL 重建技术的膝关节样本重复相同的程序。结果显示，当总移植物的初始张力设置为 12N 时，三束和双束重建膝关节的 AP 松弛度与完整的 AP 松弛度相匹配。当初始张力为12N时，屈曲角度大于60°的三束重建膝关节AP松弛度更接近完整水平。此外，与双束重建膝关节相比，三束重建膝关节中总移植物所承载的力较低。有人认为三束ACL重建可能优于传统的单束ACL重建以及双束ACL重建。