Gutiérrez-Martínez Josefina, Ortiz-Espinosa Ascención, Hernández-Rodríguez Pablo Rogelio, Núñez-Gaona Marco Antonio
Subdirección de Investigación Tecnológica. Instituto Nacional de Rehabilitación.
Rev Invest Clin. 2014 Jul;66 Suppl 1:S122-30.
Today, the manual goniometer is a common tool used in clinical practice to measure the range of motion (ROM) of joints in the hand. This device is not only tedious and highly timeconsuming to use, but its accuracy mainly depends on the experience of the examiner. The majority of electronic goniometers currently available on the market exhibit these same limitations. This document presents the physical design and attributes of a system known as the MULTIELGON, which can be used automatically to obtain multiple measurements of the angles of the hand's small finger joints simultaneously using a novel angle-to-voltage transducer. The reproducibility and repeatability of the transducer were evaluated; low dispersion and high homogeneity were demonstrated. Correlation and Bland-Altman analyses were used to compare the accuracy of the novel transducer (A) and traditional manual goniometer (B); the correlation coefficient was 0.9995. The Bland-Altman analysis determined the limits of agreement (1.4° to 1.7°) with a 95% confidence interval for any variation between the instruments (A and B), which gave readings differing by less than 3.1°. Differences were sufficiently small to propose that the manual goniometer can be replaced by the transducer; moreover A is best to evaluate the hand's small finger joints than B. The system is comprised of the device, the interface and the MULTIELGON GUI. The device consists of 14 angle-to-voltage transducers that can be attached to joints in the hand using a PVC clamp and an elastic glove. The MULTIELGON can be utilized to evaluate patients, as well as record and manage ROM data for surgical and rehabilitation decisions.
如今，手动测角仪是临床实践中用于测量手部关节活动范围（ROM）的常用工具。该设备不仅使用起来繁琐且耗时极长，而且其准确性主要取决于检查者的经验。目前市场上大多数电子测角仪也都存在同样的局限性。本文介绍了一种名为MULTIELGON系统的物理设计和特性，该系统可使用一种新型的角度 - 电压传感器自动同时获取手部小指关节角度的多次测量值。对该传感器的可重复性和再现性进行了评估；结果表明其离散度低且均匀性高。使用相关性分析和布兰德 - 奥特曼分析来比较新型传感器（A）和传统手动测角仪（B）的准确性；相关系数为0.9995。布兰德 - 奥特曼分析确定了两种仪器（A和B）之间任何差异的一致性界限（1.4°至1.7°），其95%置信区间内的读数差异小于3.1°。差异足够小，表明手动测角仪可被该传感器取代；此外，对于评估手部小指关节，A比B更优。该系统由设备、接口和MULTIELGON图形用户界面组成。该设备由14个角度 - 电压传感器组成，可使用PVC夹和弹性手套连接到手部关节。MULTIELGON可用于评估患者，以及记录和管理ROM数据，以用于手术和康复决策。
