光辅助X射线体表定位在骨科植入物内固定中的骨折定位作用

发布时间：2018-06-25 15:33

本文选题：骨折 + 内固定器　；参考：《中国组织工程研究》2016年44期

【摘要】：背景:传统骨科内固定时主要采用C臂机完成体表定位,但是C臂机对人体产生的损伤较大,固定时间较长,增加患者痛苦。目的:探讨光辅助X射线体表定位在骨科植入物内固定中定位、导航中的应用及效果。方法:26只新西兰大白兔随机分为C臂机组和光辅助X射线体表定位组,每组13只。2组大白兔均模拟软组织异物定位、骨折髓内钉远端锁钉置入、脊柱椎弓根螺钉进针点定位3种内固定方法,C臂机组采用C臂机进行定位导航,光辅助X射线体表定位组采用X射线进行定位导航,比较2组定位方法对大白兔内固定置入的定位、导航效果。结果与结论:(1)与C臂机组相比,光辅助X射线体表定位组在软组织异物定位、骨折髓内钉远端锁钉置入以及脊柱椎弓根螺钉进针点定位中定位导航所需要的时间显著缩短(P0.05),位移及角度偏差显著减小(P0.05);(2)结果表明,采用X射线对骨科内固定物进行定位操作方法相对简单,实用性较高,能获得较高的性价比,能提高内固定物置入准确性,缩短固定时间。
[Abstract]:Background: traditional orthopedic internal fixation mainly uses C-arm machine to complete the body surface positioning, but C-arm machine has a large injury to human body, and the fixation time is longer, which increases the pain of patients. Objective: to investigate the application and effect of X-ray surface localization in orthopedic implants. Methods Twenty six New Zealand white rabbits were randomly divided into C-arm group and X-ray assisted body surface localization group. 13 rabbits in each group were simulated soft tissue foreign body localization, the distal locking nail of fracture intramedullary nail was placed. Three kinds of internal fixation methods: the C-arm unit was used for positioning and navigation, and the radio-assisted X-ray body surface positioning group used X-ray for positioning and navigation. The localization and navigation effect of two groups of localization methods for rabbit internal fixation were compared. Results and conclusions: (1) compared with the C-arm unit, the radio-assisted X-ray body surface localization group was located in soft tissue foreign bodies. The time required for positioning and navigation in distal locking nail placement of intramedullary nail and pedicle screw placement in spinal pedicle screw was significantly shortened (P0.05), and the displacement and angle deviation was significantly decreased (P0.05); (2). X-ray positioning of orthopedic internal fixators is relatively simple, practical and cost-effective. It can improve the accuracy of internal fixation and shorten the fixation time.
【作者单位】：南阳医学高等专科学校第一附属医院放射科;河南省社旗县人民医院神经外科;南阳医学高等专科学校第三附属医院骨科;南阳医学高等专科学校第一附属医院胸外科;
【分类号】：R687.3;R816.8

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