3D打印技术在股骨远端骨肿瘤的应用

Application of 3D Printing Technology in the Treatment of Distal Femur Bone Tumor

目的:探讨个体化数字导板在股骨远端骨肿瘤的应用。方法:23例股骨远端患者,术前行64排螺旋CT扫描和MRI3.0T扫描,进行三维重建和股骨模型上模拟手术并设计复位导板,通过快速成型技术制作实体导板,术中引导骨肿瘤截骨。术后对手术效果进行评价。结果:平均随访48个月,无局部复发,无假体周围感染、松动及断裂事件发生。术后6个月以上进行功能评分,优16例,良5例,中2例,Enneking得分平均21分。结论:个体化数字导板应用于股骨远端骨肿瘤,可以明确骨折的复位位置,有利于骨折的精确复位,并且减少了手术的操作时间,达到更佳手术效果。

Objective： To investigate the. application of individual digital resection plate in the treatment of bone tumor. Methods： Twenty-three patients with bone tumor by spiral CT scanner and MRI. The data was reconstructed by 3D imaging reconstruction workstation. The operation was simulated and the individual resection plate was designed on the virtual 3D model according to the surgical procedure. With the rapid prototyping technology, the individual resection plate was produced to guide the reduction of the bone tumor. Results： The average follow-up times were 48 months. No local recurrence, endoprostheses infection, loosening and fracture happened. Average scoring was 21 points according to Enneking system. Conclusion： Individual digital reduction plate is helpful in accurate reduction of bone tumor and can also save the operation time.