Moorcroft C I, Ogrodnik P J, Thomas P B, Verborg S
Staffordshire University, Stoke-on-Trent, UK.
Med Eng Phys. 1997 Apr;19(3):286-90. doi: 10.1016/s1350-4533(96)00068-9.
A compact system is presented, which can continuously monitor the occurrence of fracture site movement in patients with tibial shaft fractures treated with an Orthofix external fixator allowing limited axial movement. The system comprises a microswitch and data logger board, which are both attached to the fixator. Each time the switch is closed by the movement of the fixator, the data logger records it as an event. The number of events per half hour is stored to the board's memory. The data logger can record the frequency of movement for at least a four-week period, at which time, the data can be transferred to a computer via a serial link. The system has been proven in a limited patient trial. The results highlight the variation in patient mobility. The significance of continuously monitoring the fracture site movement during the healing period is discussed.
本文介绍了一种紧凑的系统，该系统可以连续监测使用Orthofix外固定器治疗的胫骨干骨折患者骨折部位的移动情况，该外固定器允许有限的轴向移动。该系统包括一个微动开关和数据记录板，二者均连接到固定器上。每次微动开关因固定器的移动而闭合时，数据记录器将其记录为一个事件。每半小时的事件数量存储在板载内存中。数据记录器可以记录至少四周时间内的移动频率，届时数据可通过串行链路传输到计算机。该系统已在有限的患者试验中得到验证。结果突出了患者活动能力的差异。文中讨论了在愈合期持续监测骨折部位移动的重要性。
