A Computer Assisted Orthopaedic System for Distal Locking of Intramedullary Nails
A Computer Assisted Orthopaedic System for Distal Locking of Intramedullary Nails
复制标题
用于髓内钉远端锁定的计算机辅助骨科系统
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
K. Sherman
中科院分区：
文献类型：
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作者：
W. Viant;R. Phillips;J. Griffiths;A. Mohsen;T. J. Cain;M. Karpinski;K. Sherman
CAOS系统旨在通过将合适的技术引入手术室环境来协助骨科医生进行髓内钉锁定。该系统由三个组件组成：智能图像增强器、轨迹战术师和智能钻导器。 Trajectory Tactician 是根据髓内钉锁定的要求量身定制的。该方法需要捕获两个经过处理的无失真 X 射线图像，提取指甲边缘边界的投影和远端锁定孔的投影。数学模型确定钉子的位置和方向，可以通过智能图像增强器的半自动定位来确认，以实现所选远端锁定孔的完美圆形投影。然后使用智能钻指南实现轨迹。
The CAOS system aims to assist the orthopaedic surgeon in performing intramedullary nail locking, through the introduction of suitable technology into the operating theatre environment. The system comprises three components, the Smart Image Intensifier, Trajectory Tactician and Intelligent Drill Guide. The Trajectory Tactician is tailored to the requirements of intramedullary nail locking. The method requires the capture of two distortion free x-ray images that are processed, extracting both the projections of the nail edge boundaries and the projections of the distal locking holes. Mathematical modelling determines the position and orientation of the nail, which can be confirmed by semi-automatic positioning of the Smart Image Intensifier to achieve a perfect circle projection of the selected distal locking hole. The trajectory is then implemented using the Intelligent Drill Guide.