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首页> 外文会议>6th International Conference on Medical Image Computing and Computer-Assisted Intervention (MICCAI 2003) Pt.II; Nov 15-18, 2003; Montreal, Canada >Development of Computer-Assisted Radial Head Replacement
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Development of Computer-Assisted Radial Head Replacement

机译：开发计算机辅助Rad骨头置换术

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摘要

In the cases of unreconstructible comminuted radial head fractures with associated soft tissue injuries, radial head implant replacement (or arthroplasty) is indicated. Current implant designs are axisymmetric which may prevent optimal performance, as the native radial head is offset with respect to the radial neck. To study the effect of implant position on joint tracking and kinematics, a computer-assisted implant placement procedure was developed for use in vitro with a prototype adjustable radial head implant. While the implant head was rotated and translated, the head position could be visualized and described in real-time. The performance of the system was assessed in a cadaveric upper extremity, and preliminary results of the effects of implant head position on kinematics were obtained. This system has provided new information that may enhance the selection and design of implants for reconstruction of the radial head, and lead to computer-assisted placement of these implants intra-operatively.
机译：在无法修复的粉碎性un骨头骨折伴有软组织损伤的情况下，应进行indicated骨头植入物置换（或关节置换术）。当前的植入物设计是轴对称的，这可能妨碍最佳性能，因为天然native骨头相对于neck颈偏移。为了研究植入物位置对关节跟踪和运动学的影响，开发了一种计算机辅助植入物放置程序，可在体外与原型可调节radial骨头植入物一起使用。在旋转和平移植入物头部的同时，可以实时观察和描述头部位置。在尸体上肢中评估了该系统的性能，并获得了植入物头部位置对运动学影响的初步结果。该系统提供了新的信息，可以增强用于重建enhance骨头的植入物的选择和设计，并导致在手术中计算机辅助放置这些植入物。

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