[多层螺旋CT扫描及三维重建在选择下颌骨内固定材料最佳长度和形状中的价值]。

Ba-sheng Hu, Xue-lin Zhang, Feng Zhou, Ren-ming Chang, Huan-qing Tan
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引用次数: 0

摘要

目的:探讨多层螺旋CT (MSCT)扫描及三维重建在选择下颌骨内固定材料的最佳长度和形状中的价值。方法:采用MSCT对5例患者进行下颌骨三维重建,并测量手术所需下颌骨长度。在下颌曲线上选择一些等距点,测量这些点到曲线两端的距离,使用自行设计的骨骼曲线描绘软件来描绘下颌曲线。然后确定内固定材料的最佳长度和形状。结果:重建的三维下颌骨在任何方向上都能清晰地看到软组织和其他无关骨骼,用该软件可以准确地测量下颌骨的长度。确定下颌骨曲线上所选点到曲线两端的距离,生成下颌骨生理曲线,精确确定内固定材料的长度和形状。结论:MSCT下颌骨三维重建和测量有助于确定内固定材料的最佳长度和形状,增强材料与骨表面的附着性,从而提高治疗效果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
[Value of multislice spiral CT scanning and three-dimensional reconstruction in selecting optimal length and shape of mandible internal fixation material].

Objective: To investigate the value of multislice spiral CT (MSCT) scanning and three-dimensional reconstruction in selecting optimal length and shape of mandible internal fixation material.

Methods: Three-dimensional reconstruction of the mandible was performed in 5 cases by MSCT scanning and the length of the mandible for operation was measured. Some isometric points were chosen on the mandibular curve and the distance from these points to the two ends of the curve was measured to depict the mandibular curve using a self-designed skeletal curve-depicting software. The optimal length and shape of the material for internal fixation was then determined.

Results: After removal of the soft tissues and other irrelevant bones from the reconstructed three-dimensional mandible with clear view from any directions, the length of the mandible was accurately measured with the software. The physiological curve of the mandible was generated after determination of the distances from the chosen points on the mandibular curve and to the two ends of the curve for precise determination of the length and shape of the material for internal fixation.

Conclusion: Three-dimensional mandible reconstruction with MSCT and measurement facilitates the determination of the optimal length and shape of the internal fixation material to enhance the attachment between the material and the bone surface and consequently the therapeutic effects.

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