Perception of socket alignment perturbations in amputees with transtibial prostheses
Perception of socket alignment perturbations in amputees with transtibial prostheses
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DOI：
10.1682/jrrd.2011.08.0143
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发表时间：
2012-01-01
影响因子：
--
通讯作者：
Zhang, Ming
中科院分区：
文献类型：
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作者：
Boone, David A.;Kobayashi, Toshiki;Zhang, Ming
截肢者的主观感觉是唯一可以用来描述假肢适合度和舒适度的工具。然而，很少有研究调查对齐对这种感知的影响。本文的目的是确定截肢的人是否能感知到他们的假肢的对齐扰动，并有效地沟通。在11名经胫骨假体受试者的对齐条件下，诱导矢状面（屈曲、伸展、前后平移）和冠状面（外展、内收、内外平移）的角度（3度和6度）和平移（5 mm和10 mm）对齐的随机对照扰动。在站立时（静态）和步行后立即（动态）使用软件评价感知，该软件在每个对齐条件下使用视觉模拟量表。在冠状面中，Friedman检验证明了具有角度扰动的静态（p < 0.001）和动态（p < 0.001）感知测量的一般统计学差异。在矢状面中，还显示了具有角度扰动的后期站立动态感知测量（p < 0.001）以及具有平移扰动的早期站立动态感知测量（p < 0.05）的一般统计学差异。Fisher精确检验表明，截肢者的知觉是冠状角排列不良的良好指标，但在定义其他排列条件时不太可靠。
A person with amputation's subjective perception is the only tool available to describe fit and comfort to a prosthefist. However, few studies have investigated the effect of alignment on this perception. The aim of this article is to determine whether people with amputation could perceive the alignment perturbations of their prostheses and effectively communicate them. A randomized controlled perturbation of angular (3 and 6 degrees) and translational (5 and 10 mm) alignments in the sagittal (flexion, extension, and anterior and posterior translations) and coronal (abduction, adduction, and medial and lateral translations) planes were induced from an aligned condition in 11 subjects with transtibial prostheses. The perception was evaluated when standing (static) and immediately after walking (dynamic) using software that used a visual analog scale under each alignment condition. In the coronal plane, Friedman test demonstrated general statistical differences in static (p < 0.001) and dynamic (p < 0.001) measures of perceptions with angular perturbations. In the sagittal plane, it also demonstrated general statistical differences in late-stance dynamic measures of perceptions (p < 0.001) with angular perturbations, as well as in early-stance dynamic measures of perceptions (p < 0.05) with translational perturbations. Fisher exact test suggested that people with amputation's perceptions were good indicators for coronal angle malalignments but less reliable when defining other alignment conditions.