数字化重建与快速成型技术在复杂上颈椎疾患诊治中的应用

目的:利用数字化三维重建和快速成型技术制作头颈部三维实体模型,并探讨其在复杂上颈椎疾患诊治中的应用效果。方法:采集32例复杂上颈椎疾患患者头颈部CT断层扫描数据,进行数字化三维重建、快速成型制备1∶1三维实体模型,并将其应用于诊治、手术规划和术中参照。结果:32例患者均在三维实体模型指导下完成,手术过程顺利。32例患者术中所见与术前数字化三维重建模型和三维实体模型的病灶结构变化一致,三者间进钉点距中线距离、钉道外倾角及钉道长度与术中实际测量的数据差异无显著性(P>0.05)。术后ASIA评分与术前比较差异有显著性(P<0.01)。术后复查X线、CT和MRI示:脊髓受压解除,病灶清除满意,内固定物在位良好,未出现神经、血管损伤等并发症。结论:数字化重建与快速成型技术能够准确和直观地反映上颈椎病变情况,可指导制定手术计划和手术操作。

Application of digital spine and rapid prototyping in complicated upper cervical spine disease

Objective:To construct three-dimensional model of craniocervical region by using digital spine and rapid prototyping and investigate its value in managing complicated upper cervical spine disease.Method:The CT scans of 32 patients who sustained complicated upper cervical spine disease were used for three-dimension reconstruction and the rapid prototype model(1:1) of the upper cervical spine were achieved for clinical practice.Result:All operations for these patients were successfully performed under the gui...