A comparative analysis of several crutch-length-estimation techniques.
A comparative analysis of several crutch-length-estimation techniques.
复制标题
几种拐杖长度估计技术的比较分析。
DOI：
10.1093/ptj/71.4.294
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发表时间：
1991
期刊：
影响因子：
3.2
通讯作者：
S. Allison
中科院分区：
文献类型：
--
作者：
D. Bauer;D. C. Finch;K. McGough;C. Benson;K. Finstuen;S. Allison
本研究的目的是确定几个拐杖拟合技术最好的预测理想的拐杖长度。使用以下每种方法测量了107名现役军人志愿者的拐杖：（1）仰卧位腋褶至足跟，（2）鹰嘴至对侧第三指尖，（3）鹰嘴至对侧第五指尖，（4）身高的77%，（5）身高减去16英寸，（40.6 cm），（6）臂展的77%，以及（7）臂展减去16 in（40.6 cm）。受试者自我报告的身高和他们实际测量的身高都用于计算身高。理想的拐杖长度由经验丰富的骨科物理治疗师确定，腋窝垫放置在腋窝褶皱下方2.5英寸（6.4 cm）处。然后计算均方误差指数，作为技术测量值与理想拐杖长度的平方偏差的平均值。在所研究的技术中，两种涉及对受试者自我报告的身高进行微小算术调整的技术被发现是良好的预测因子：身高和身高减去16英寸（40.6厘米）的77%。最差的预测因素是仰卧位时腋窝到脚跟。最后，使用线性回归分析得出两个额外的长度估计值。这些估计值提供了基于实际身高和报告身高的最佳总体预测。根据这些回归结果，开发了一个基于患者身高的拐杖长度估计快速参考表。
The purpose of this study was to determine which of several crutch-fitting techniques best predicts ideal crutch length. One hundred seven active-duty military volunteers were measured for crutches using each of the following methods: (1) axillary fold to heel in the supine position, (2) olecranon to opposite third fingertip, (3) olecranon to opposite fifth fingertip, (4) 77% of height, (5) height minus 16 in (40.6 cm), (6) 77% of arm span, and (7) arm span minus 16 in (40.6 cm). The subject's self-reported heights and their actual measured heights were both used in calculations involving height. Ideal crutch length was determined by an experienced orthopedic physical therapist, with placement of the axillary pad 2.5 in (6.4 cm) below the axillary fold. Mean squared error indices were then computed as the average of the squared deviations of the technique measurements from the ideal crutch length. Of the techniques studied, the two involving minor arithmetical adjustments to the subjects' self-reported height were found to be good predictors: 77% of height and height minus 16 in (40.6 cm). The poorest predictor was axilla to heel in the supine position. Finally, two additional length estimates were derived using linear regression analyses. These estimates provided the best overall predictions based on actual height and reported height. A quick-reference table for crutch-length estimates based on patient heights was developed from these regression results.