Chao E Y, An K N, Askew L J, Morrey B F
Orthopedic Biomechanics Laboratory, Mayo Clinic, Rochester, Minn. 55901.
J Biomech Eng. 1980 Nov;102(4):301-10. doi: 10.1115/1.3138227.
Since the electrogoniometric method has been justified for the measurement of lower extremity joint motion, a similar device is developed for the measurement of elbow joint and forearm rotations. In this design, the axis of forearm rotation coincides with the anatomical axis which eliminates the cross talk existing in the regular triaxial goniometer. Although the axis of abduction-adduction is still offset from the elbow joint, special linkage arrangement was used to obtain equivalent motion. Experimental method was used to validate the accuracy of the device and model simulation was performed to emphasize the importance of accurate placement of the instrument on test subjects. Application of the present apparatus to normal subjects was studied to illustrate the range of elbow motion required in performing normal activities of daily living. This device is currently used in the functional evaluation of patients with elbow and forearm problems.
由于电子测角法已被证明可用于测量下肢关节运动，因此开发了一种类似的装置来测量肘关节和前臂的旋转。在这种设计中，前臂旋转轴与解剖轴重合，这消除了常规三轴测角仪中存在的串扰。虽然外展-内收轴仍偏离肘关节，但采用了特殊的连杆装置来获得等效运动。采用实验方法验证了该装置的准确性，并进行了模型模拟以强调仪器在测试对象上准确放置的重要性。研究了本装置在正常受试者中的应用，以说明进行正常日常生活活动所需的肘关节运动范围。该装置目前用于肘部和前臂问题患者的功能评估。
