Kim Yoon Hyuk, Kim Kyungsoo, Park Won Man, Yoon Kyoung Ho
Department of Mechanical Engineering & e-Spine Center, Kyung Hee University, Yongin, 446-701, Korea.
Comput Methods Biomech Biomed Engin. 2012;15(8):801-6. doi: 10.1080/10255842.2011.561792. Epub 2011 May 24.
When using continuous passive motion (CPM) devices, appropriate setting of the device and positioning of the patient are necessary to obtain maximum range of motion (ROM). In this study, the ROMs in both the knee joint and CPM device during CPM treatment were measured using a motion analysis system for three different CPM devices. Additionally, the trajectories of the angles at the knee for hip joint misalignments were evaluated using kinematic models of the three CPM devices. The results showed that discrepancies in ROM between the knee joints and the CPM device settings during CPM treatment were revealed regardless of the CPM device and that the effect of misalignment is dependent on the design of the CPM device. The present technology could be applied for the development of a better design configuration for the CPM device to reduce the discrepancy in ROM at the knee joint.
使用连续被动运动（CPM）设备时，为了获得最大活动范围（ROM），需要对设备进行适当设置并对患者进行正确定位。在本研究中，使用运动分析系统对三种不同的CPM设备在CPM治疗期间膝关节和CPM设备中的ROM进行了测量。此外，使用三种CPM设备的运动学模型评估了髋关节错位时膝关节角度的轨迹。结果表明，无论CPM设备如何，CPM治疗期间膝关节与CPM设备设置之间的ROM均存在差异，并且错位的影响取决于CPM设备的设计。当前技术可应用于开发更好的CPM设备设计配置，以减少膝关节ROM的差异。
