Shape and volume change in the transtibial residuum over the short term: Preliminary investigation of six subjects
Shape and volume change in the transtibial residuum over the short term: Preliminary investigation of six subjects
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DOI：
10.1682/jrrd.2003.10.0153
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发表时间：
2004-09-01
影响因子：
--
通讯作者：
Sanders, JE
中科院分区：
文献类型：
--
作者：
Zachariah, SC;Saxena, R;Sanders, JE
进行了初步调查，以表征两个时间间隔内经胫骨残余物体积变化的幅度和分布：假体移除时和两周间隔。截肢后 0.75 至 40.0 岁之间的六名成年男性单侧经胫骨截肢者在 35 分钟的时间间隔内使用定制的残肢光学扫描仪进行了 10 次成像。评估了随时间变化的体积变化和形状变化。两周后重复测量。六名受试者移除牙窝后体积增加范围为 2.4% 至 10.9%（中位数 6.0% +/- 标准偏差 3.6%）。体积增加率在牙槽窝移除后立即达到最高，并随着时间的推移而下降（五名受试者）。 4 名受试者在 8 分钟内达到了 95% 的音量增加。随着时间的推移，肢体横截面积的变化没有检测到一致的近端到远端差异。相隔 2 周的肢体体积差异范围为 -2.0% 至 12.6% (0.6% +/- 5.5%)，其幅度小于 35 分钟间隔内的肢体体积差异（五名受试者）。多种液体运动机制可能导致短期体积变化，不同截肢者的相对幅度和速率不同。
A preliminary investigation was conducted to characterize the magnitude and distribution of volume change in transtibial residua at two time intervals: upon prosthesis removal and at 2 week intervals. Six adult male unilateral transtibial amputee subjects, between 0.75 and 40.0 years since amputation, were imaged 10 times over a 35-minute interval with a custom residual limb optical scanner. Volume changes an shape changes over time were assessed. Measurements were repeated 2 weeks later. Volume increase on socket removal for the six subjects ranged from 2.4% to 10.9% (median 6.0% +/- standard deviation 3.6%). Rate of volume increase was highest immediately upon socket removal and decreased with time (five subjects). In four subjects, 95% of the volume increase was reached within 8 minutes. No consistent proximal-to-distal differences were detected in limb cross-sectional area change over time. Limb volume differences 2 weeks apart ranged from -2.0% to 12.6% (0.6% +/- 5.5%) and were less in magnitude than those within a session over the 35-minute interval (five subjects). Multiple mechanisms of fluid movement may be responsible for short-term volume changes, with different relative magnitudes and rates in different amputees.