计算机快速成型技术在复杂重度脊柱侧凸畸形中的初步临床应用

目的采用计算机快速成型技术重建复杂重度脊柱侧凸畸形模型，探讨其在临床矫形手术中的初步临床应用价值：方法26例重度复杂脊柱侧凸畸形患者，平均年龄21．8岁（6～54岁），其中男性5例，女性21例。特发性脊柱侧凸4例，先天性脊柱侧凸20例，神经肌肉型脊柱侧凸2例。病程6～45年，平均19.3年。采用手术治疗，术前根据CT断层扫描数据进行计算机快速成型，将重建的脊柱侧凸畸形模型应用于临床。结果根据重建的脊柱侧凸畸形模型制定手术计划和进行手术设计，术中所见脊柱畸形与计算机重建模型的外形尺寸完全一致，消毒后可在手术台上直接指导手术操作。26例患者按计划完成矫形手术，矫形效果和内固定满意，未出现神经、血管损伤等并发症。结论计算机快速成型技术重建复杂重度脊柱侧凸畸形模型能够精确和直观地反映脊柱畸形情况，从而指导制定手术计划和手术操作。

The primary application of computerized rapid plasty in management of complicated severe spinal scoliosis

Objective To study the primary application of computerized rapid plasty in the clinical orthopedics by operation in complicated severe spinal scoliosis deformity model. Methods Twenty-six patients with complicated severe spinal scoliosis were enrolled,male 5 ,female 21 ,mean age 21.8 years,4 patients with idiopathic scoliosis,20 patients with congenital scoliosis, and 2 patients with neuromuscular spinal scoliosis. Before the correction operation, the computerized rapid plasty were prepared for clinical treatment by CT scanned dataset. Results The operation plan and process were made by computerized rapid plasty. The observed abnormalities in the operation process were coincided with the same size as the preoperative rapid plasty reconstruction model. The scoliosis correction results of 26 patients were successfully fulfilled the preoperative plan. The correction results and internal fixation were satisfied without neurological and vascular damages. Conclusion Deformity profiles can be observed accurately and directly by computerized rapid plasty model ,thus the operation schedule and processes might be guided to design.