全髋关节置换术中髋臼假体位置的无影像计算机导航技术的发展
Development of imageless computer navigation for acetabular component position in total hip replacement.
作者信息
Dorr Lawrence D, Hishiki Yuji, Wan Zhinian, Newton Deanne, Yun Andrew
机构信息
The Arthritis Institute, 501 E. Hardy Street, 3rd Floor, Inglewood, CA 90301, USA.
出版信息
Iowa Orthop J. 2005;25:1-9.
Abstract
The purpose of this study was to develop an imageless (without preoperative computerized tomography (CT) scans or intraoperative fluoroscopy) computer navigation system for total hip replacement. One-hundred and ninety-five hips were operated with imageless computer navigation. Eighty-five hips were operated prior to obtaining precise results, with precision refined in the subsequent 110 hips. Computer accuracy for cup-adjusted anteversion was achieved in 100% of the final 40 hips, and for adjusted inclination in 96.6%. The factors necessary for accurate measurements are mechanical stability of the tools with the light-emitting diodes, adjusted computer anteversion and inclination for the tilt of the pelvis (tilt in the AP plane), and check-and-balance techniques for confirmation of measurements of tilt, anteversion and inclination.
摘要
本研究的目的是开发一种用于全髋关节置换的无影像（无需术前计算机断层扫描（CT）或术中透视）计算机导航系统。195例髋关节采用无影像计算机导航进行手术。85例髋关节在获得精确结果之前进行了手术，随后的110例髋关节精度得到了提高。在最后40例髋关节中，髋臼调整前倾角的计算机精度达到100%，调整倾斜角的精度达到96.6%。精确测量所需的因素包括带有发光二极管的工具的机械稳定性、根据骨盆倾斜度（前后平面倾斜）调整计算机前倾角和倾斜角，以及用于确认倾斜、前倾角和倾斜角测量的制衡技术。
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