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首页> 外文期刊>The international journal of medical robotics + computer assisted surgery: MRCAS >Finite element analysis of customized implant in mandibular reconstruction after tumor resection with and without using customized surgical osteotomy guide
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Finite element analysis of customized implant in mandibular reconstruction after tumor resection with and without using customized surgical osteotomy guide

机译：肿瘤切除术后肿瘤切除术后颌骨重建定制植入物的有限元分析

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Abstract Objectives The aim of this work was to compare different 12 cases (3 patients * 4 cases?=?12 cases) with varying gaps between implant and bone by analyzing the effect of these gaps on implant and screws using FEM. Methods In each patient's case 1 using CSOG and in case 2, 3, and 4 without using CSOG tumor cutting was done. Hence in each patient zero gaps at case 1 and overcutting at case 2, 3, and 4 have obtained at different locations. Results FEM results reveal that in each patient's case 4 (maximum gap) was more susceptible to loosening of the screws due to higher strains (37%) and implant failure due to higher stress (28%) concentration under the same loading conditions when compared with case 1 (zero gap). Conclusions The study reveals that mandibular reconstruction with implant placement using CSOG can significantly enhance the stability and safety of the implant.
机译：摘要目的本研究的目的是通过有限元分析不同间隙对种植体和螺钉的影响，比较12例（3例患者*4例？=？12例）种植体和骨之间的不同间隙。方法在每个患者的病例1中使用CSOG，在病例2、3和4中不使用CSOG进行肿瘤切除。因此，在每名患者中，病例1的间隙为零，病例2、3和4的过度切割在不同位置获得。结果FEM结果显示，在相同载荷条件下，与病例1（零间隙）相比，病例4（最大间隙）更容易因更高的应变（37%）导致螺钉松动，以及因更高的应力（28%）浓度导致植入失败。结论应用CSOG进行下颌骨重建，可显著提高种植体的稳定性和安全性。

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