中国组织工程研究Issue(13)：2333-2338,6.DOI:10.3969/j.issn.2095-4344.2013.13.008
三维重建腰椎椎弓根螺钉置入的精确性**☆
Accuracy of pedicle screw placement based on three-dimensional lumbar reconstruction
摘要
Abstract
BACKGROUND: The three-dimensional reconstruction techniques have been widely used in preoperative planning of pedicle screw placement, but the direct accuracy analysis of the forecast parameters has not yet been reported. <br> OBJECTIVE: To analyze the accuracy of three-dimensional reconstruction based on computerized tomography in the application of lumbar pedicle screw placement. <br> METHODS: By the using of the Mimics software, we selected 136 lumbar pedicles to perform the preoperative three-dimensional reconstruction, which were randomly selected from 30 patients treated with pedicle screw fixation. By the simulation modules of Mimics, the length, diameter, transverse section angle and sagital section angle were preoperatively predicted. Then, the data were statistical y compared with the actual data of the patients postoperatively. <br> RESULTS AND CONCLUSION: Through the three-dimensional lumbar reconstruction preoperatively by Mimics software, the best channel of pedicle screw placement was designed and the placement of the screw was simulated. The length, diameter, transverse section angle and sagital section angle of preoperative predicted pedicle screw were pre-measured. There was no significant difference of the data when compared with the actual data obtained from the C-arm and intra-fixation navigation system after placement (P > 0.05). The postoperative actual location and length of pedicle screws were excel ent from CT scans. Through the preoperative three-dimensional lumbar reconstruction by Mimics software, the parameters of simulating pedicle screw placement can precisely guide and improve the safety of pedicle screws placement.关键词
骨关节植入物/脊柱植入物/三维重建/椎弓根螺钉/精确性/腰椎/水平面角/矢状面角度/模拟置钉/置钉参数/内固定/省级基金/骨关节植入物图片文章分类
医药卫生引用本文复制引用
杨波,方世兵,尹飚,宋磊,王簕,万盛钰,谢景开..三维重建腰椎椎弓根螺钉置入的精确性**☆[J].中国组织工程研究,2013,(13):2333-2338,6.基金项目
2008年广东省科技计划项目(2008A030201015)；广州市科学技术经费项目(2011J4100052)。 （2008A030201015）
