Ha Yong Kim, Young Sun An, Seung Hak Oh, Han Cheol Lee
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引用次数: 0
Abstract
Background: The gait analysis method that has been used in clinical practice to date is an optical tracking system (OTS) using a marker, but a markerless gait analysis (MGA) system is being developed because of the expensive cost and complicated examination of the OTS. To apply this MGA clinically, a comparative study of the MGA and OTS methods is necessary. The purpose of this study was to evaluate the compatibility between the OTS and the MGA methods and to evaluate the usefulness of the MGA system in actual clinical settings.
Methods: From March 2021 to August 2021, 14 patients underwent gait analysis using the OTS and MGA system, and the spatiotemporal parameters and kinematic results obtained by the 2 methods were compared. To evaluate the practicality of the MGA system in an actual clinical setting, MGA was performed on 14 symptomatic children with idiopathic toe walking, who had been treated with a corrective cast, and the pre-cast and post-cast results were compared. For the OTS, the Motion Analysis Eagle system was used, and for MGA, DH Walk was used.
Results: The spatiotemporal parameters showed no significant difference between the OTS and MGA system. The joint angle graphs of the kinematics along the sagittal plane showed similar shapes as a whole, with particularly high correlations in the hip and knee (pelvis: 29.4%, hip joint: 96.7%, knee joint: 94.9%, and ankle joint: 68.5%). A quantified comparison using the CORrelation and Analysis (CORA) score also showed high similarity between the 2 methods. The MGA results of pre-cast application and post-cast removal for children with idiopathic toe walking showed a statistically significant improvement in ankle dorsiflexion after treatment (p < 0.001).
Conclusions: MGA showed a good correlation with the conventional OTS in terms of spatiotemporal parameters and kinematics. We demonstrated that ankle sagittal kinematics improved after treatment by corrective cast in children with idiopathic toe walking using the MGA method. Thus, after the improvement of a few limitations, the MGA system may soon be able to be clinically applied.
背景:迄今为止,临床上使用的步态分析方法是使用标记的光学跟踪系统(OTS),但由于光学跟踪系统费用昂贵且检查复杂,目前正在开发一种无标记步态分析(MGA)系统。为了将这种无标记步态分析系统应用于临床,有必要对 MGA 和 OTS 方法进行比较研究。本研究的目的是评估 OTS 和 MGA 方法之间的兼容性,并评估 MGA 系统在实际临床环境中的实用性:方法:2021年3月至2021年8月,14名患者使用OTS和MGA系统进行了步态分析,并比较了两种方法获得的时空参数和运动学结果。为评估 MGA 系统在实际临床环境中的实用性,对 14 名接受过矫正石膏治疗的特发性足趾行走症状儿童进行了 MGA 分析,并比较了石膏前和石膏后的结果。OTS使用的是运动分析鹰系统,MGA使用的是DH Walk:结果:OTS 和 MGA 系统的时空参数无明显差异。沿矢状平面的运动学关节角度图显示出相似的整体形状,髋关节和膝关节的相关性尤其高(骨盆:29.4%;髋关节:96.7%;膝关节:94.9%;踝关节:68.5%)。使用 CORrelation and Analysis(CORA)评分进行的量化比较也显示出两种方法之间的高度相似性。对特发性足趾外翻患儿进行铸模前和铸模拆除后的 MGA 结果显示,治疗后踝关节外翻的改善具有统计学意义(P < 0.001):在时空参数和运动学方面,MGA 与传统的 OTS 显示出良好的相关性。我们用 MGA 方法证明,特发性足尖行走患儿在使用矫正石膏治疗后,踝关节矢状运动学得到了改善。因此,在改善了一些局限性之后,MGA 系统可能很快就能应用于临床。
期刊介绍:
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.