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首页> 外文期刊>Journal of prosthetics and orthotics: JPO >Determination of Dynamic Prosthetic Alignment Using Forceline Visualization
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Determination of Dynamic Prosthetic Alignment Using Forceline Visualization

机译：使用力线可视化确定动态假体对准

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ABSTRACT Objective techniques for determining proper configuration (alignment) of lower limb prostheses can help standardize and improve the functional outcomes for amputees. We propose that a dynamic forceline visualization system can assist in the development of such techniques. The forceline is a tool that allows the visualization of the ground reaction force in real time and in a spatially accurate manner relative to the image of the person as he/she walks. We evaluated a simplified version of an alignment protocol based on the forceline and using three novice clinicians and four amputee test subjects. The goal was to determine how easily the novice clinicians could learn the technique and how well they could apply it. All three clinicians were given a group training lasting about 1.5 hrs in which they were familiarized with the forceline visualization tool and were shown how to use it for determining prosthetic alignment on subjects with lower limb amputation. Then, each clinician evaluated the same four amputees both with and without the use of the forceline. The clinicians were able to learn and incorporate the simple alignment methodology using the forceline easily-each demonstrating basic understanding and skill in applying the method on the first amputee that each one evaluated. In 36% of the cases, using the line helped to standardize the clinicians' alignments to the target alignment (the laboratory "nominal"). In 14% of the cases, using the forceline actually moved the clinicians away from the laboratory nominal. The alignment technique presented can assist clinical thinking by removing some of the guesswork and uncertainty involved during the alignment process. No objective or widely accepted standard exists for the definition of an optimal prosthetic alignment. A technique, such as that presented here, may help in defining and also subsequently in obtaining an optimal alignment.
机译：摘要确定下肢假体正确配置（对准）的客观技术可以帮助标准化和改善截肢者的功能结局。我们建议动态的动力线可视化系统可以协助此类技术的发展。力线是一种工具，它可以实时地以相对于人员行走时图像的空间精确方式可视化地面反作用力。我们评估了基于力量线并使用三名新手临床医生和四名截肢者测试对象的对准协议的简化版本。目的是确定新手临床医师可以轻松地学习该技术以及如何很好地应用该技术。对三名临床医生进行了为时约1.5小时的小组培训，他们熟悉了力线可视化工具，并展示了如何使用它来确定下肢截肢患者的假体对齐方式。然后，每个临床医生在使用和不使用强制线的情况下都对相同的四个截肢者进行了评估。临床医生能够轻松地使用力线学习和整合简单的对准方法，每个方法都展示了将方法应用于每个被评估的第一名截肢者的基本知识和技能。在36％的情况下，使用生产线有助于将临床医生的排列与目标排列（实验室“标称”）标准化。在14％的案例中，使用强制线实际上使临床医生远离了实验室标称。提出的对准技术可以消除对准过程中涉及的一些猜测和不确定性，从而有助于临床思考。对于最佳假体对准的定义，没有客观的或广泛接受的标准。诸如此处提出的技术可以帮助定义并随后获得最佳对准。

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