数字化模拟技术在额眶部复杂骨质缺损修复中的应用  

Application of numerical simulation technique in complex supra- orbital and frontal osseous defect

作　　者：戴利[1] 郑永生[1] 

机构地区：[1]首都医科大学附属北京同仁医院整形美容中心,北京 100730

出　　处：《国际外科学杂志》2008年第4期242-244,共3页International Journal of Surgery

摘　　要：目的探讨数字化技术在修复额眶部复杂骨质缺损中的实际应用。方法对额眶部复杂骨质缺损的病例采用螺旋CT扫描取得缺损部位骨组织数据，在计算机上进行三维重建，得到数字化模型，通过机械工程快速成型技术得到实体模型，在计算机上对数字化模型进行术前测量、模拟手术，并计算求得修复体模型，选择合适的材料加工得到修复体后，通过实体模型的模拟手术进行验证和修改，术中植入受区。结果本组患者12例，其中额眶颧骨折4例，眉弓缺损1例，陈旧性额眶颧骨折7例。术后额眶部形态满意，双侧眉弓对称。随访1～2年，1例发生术后1月感染，取出植入体，余均无植入体外露、变形及形态不满意。结论采用数字化技术可以术前取样、计算机模拟手术、实体模型模拟手术，并术前预制修复体，降低了额眶部复杂骨质缺损的一期修复与重建手术难度，提高了手术的精确性。Objective To investigate the application of numerical simulation technique in supraorbital and frontal osseous defect. Methods The data of the patients with complex supraorbital and frontal osseous defects were obtained by helix CT scan. Numerical model based on the data was built up by computer. And the true model was produced by Rapid Prototyping. Being stimulated before this operation, the model was di- rectly used in the operation. Results All of these 12 patients （one of defect of brow, four fracture of brow and zygoma, seven of old fracture of brow and zygoma） in this study were satisfied and their brows were symmetry after operation. All of them were satisfied after 1 or 2 years, without implantation exposure and transfiguration except one with infection. Condusion Based on numerical technique difficulties of repairing, complex supraorbital and frontal osseous defect could be resolved by such process as collecting the bone data, stimulating operation by true models, and producing implantation before the operation. The accuracy of these operations can be improved.

关 键 词：数字化技术 计算机模拟 快速成型 

分 类 号：R7[医药卫生—临床医学]