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Evaluation of the knee instability in anterior cruciate ligament injury using a newly developed three dimensional motion analysis

使用新开发的三维运动分析评估前交叉韧带损伤中的膝关节不稳定性

基本信息

批准号：
15300168
负责人：
NAGURA Takeo
金额：
$ 4.1万
依托单位：
Keio University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15300168/
关键词：
Biomechanics Knee Ligament Injury Anterior Cruciate Ligament Joint Loading 靱帯損傷前十字靱帯

项目摘要

We investigated three dimensional knee mechanics in anterior cruciate ligament (ACL) injury using a novel method. A skin marker based motion analysis technique (Point Cluster Technique) was developed. The subjects were 7 women and 5 men, diagnosed as unilateral ACL injury and were going to have the reconstruction surgery. The average time past injury was 27.5 months (2-120 months). After obtaining the informed consent, the knee kinematics were measured using the point cluster technique, where 21 skin markers were placed on the each segment of lower limbs and iliac crest, and with 3-dimensional motion analysis system, consisted of 5 optoelectronic cameras, a force plate and PC. Each subject performed three activities ; level walking, running, and side cutting to the contralateral side of the measured limb. The healthy side of the ACL deficient patients were also evaluated for comparison. In jogging and cutting activities, ACL deficient (ACLD) knees showed the tendency that the knee flexion decreased in mid-stance phase, but no significant difference was seen in these activities. In walking, no obvious difference was seen about tibial rotation. In 90 degrees pivoting, the amount of rotation angle was the largest in the five activities, but ACLD and the healthy knees had similar motion pattern. During jogging motion, no significant difference was seen either. But during cutting maneuver, ACLD tended to catch the ground as the tibia more externally rotated, and especially in 90 degrees cutting, significant difference was observed at heel strike and just before toe off. However significant difference between ACL deficient and healthy side was not observed in total amount of tibial rotation during each activity. In conclusion, our new method (point cluster technique) is an useful tool to evaluate dynamic knee instability in knee patients such as ACL injury.

我们用一种新的方法研究了前交叉韧带（ACL）损伤后的三维膝关节力学。提出了一种基于皮肤标记的运动分析技术（点聚类技术）.受试者为7名女性和5名男性，诊断为单侧ACL损伤并准备接受重建手术。平均伤后时间27.5个月（2-120个月）。在获得知情同意后，采用点簇技术，在下肢各节段和髂嵴上放置21个皮肤标记物，并使用由5个光电摄像机、1个测力板和PC机组成的三维运动分析系统测量膝关节运动学。每名受试者进行三项活动：水平行走、跑步和侧切到测量肢体的对侧。ACL缺陷患者的健康侧也进行了评价以进行比较。在慢跑和切割活动中，ACL缺陷（ACLD）膝关节在站立中期有膝关节屈曲度下降的趋势，但在这些活动中没有发现显著差异。行走时，胫骨旋转无明显差异。在90 °旋转时，5种活动中旋转角度最大，但ACLD与健康膝关节的运动模式相似。在慢跑运动中，也没有看到显着差异。但在切割动作中，随着胫骨外旋的增加，ACLD更倾向于抓地，尤其是在90 °切割动作中，在脚跟着地和脚趾离地前观察到显著差异。但ACL缺损侧与健侧在每次活动中胫骨旋转总量无显著性差异。总之，我们的新方法（点簇技术）是一个有用的工具，以评估动态膝关节不稳定的膝关节患者，如ACL损伤。