背景:以前的研究表明,通过使用各种三维(3D)打印技术,可以制造合成脊柱模型,以模仿人体脊柱的总体和放射学解剖结构以及骨骼和韧带组织的生物力学性能。这些制造过程没有,然而,组合使用来创建一个长段,脊柱侧凸患者的仿生模型。这项研究的目的是描述仿生脊柱侧凸模型的开发以及使用该模型作为手术计划和教育平台的早期临床经验。
方法:打印合成脊柱模型以模拟2例成年脊柱侧凸患者的解剖结构和生物力学性能。术前,模型由每位患者的主治医生进行手术矫正.然后,患者接受了脊柱畸形的手术矫正。将模型的校正与患者的手术校正进行比较。
结果:患者1的术前从L1到S1的冠状Cobb角为40°,患者的合成脊柱模型也是如此。患者的脊柱模型校正为17.6°,患者获得了17.3°的矫正。患者2的术前中胸Cobb角为88°,上胸Cobb角为43°。术前,患者的脊柱模型被校正为19.5°和9.2°的中胸和上胸曲线,分别。手术后立即,患者胸中和胸上Cobb角测得18.7°和9.5°,分别。在这两种情况下,术前脊柱模型的使用改变了主治医师的手术计划。
结论:提出了一种用于矫正脊柱侧凸手术的新型合成脊柱模型,以及使用该模型作为手术计划平台的早期临床经验。该模型不仅作为手术计划平台,而且作为患者同意的辅助手段,具有巨大的潜力。外科教育,和生物力学研究。
BACKGROUND: Previous studies have demonstrated that, by using various three-dimensional (3D) printing technologies, synthetic spine models can be manufactured to mimic a human spine in its gross and radiographic anatomy and the biomechanical performance of bony and ligamentous tissue. These manufacturing processes have not, however, been used in combination to create a long-segment, biomimetic model of a patient with scoliosis. The purpose of this study was to describe the development of a biomimetic scoliosis model and early clinical experience using this model as a surgical planning and education platform.
METHODS: Synthetic spine models were printed to mimic the anatomy and biomechanical performance of 2 adult patients with scoliosis. Preoperatively, the models were surgically corrected by the attending surgeon of each patient. Patients then underwent surgical correction of their spinal deformities. Correction of the models was compared to the surgical correction in the patients.
RESULTS: Patient 1 had a preoperative coronal Cobb angle of 40° from L1 to S1, as did the patient\'s synthetic spine model. The patient\'s spine model was corrected to 17.6°, and the patient achieved a correction of 17.3°. Patient 2 had a preoperative mid-thoracic Cobb angle of 88° and an upper thoracic Cobb angle of 43°. Preoperatively, the patient\'s spine model was corrected to 19.5° and 9.2° for the mid-thoracic and upper thoracic curves, respectively. Immediately after surgery, the patient\'s mid-thoracic and upper thoracic Cobb angles measured 18.7° and 9.5°, respectively. In both cases, the use of the spine models preoperatively changed the attending surgeon\'s operative plan.
CONCLUSIONS: A novel synthetic spine model for corrective scoliosis procedures is presented, along with early clinical experience using this model as a surgical planning platform. This model has tremendous potential not only as a surgical planning platform but also as an adjunct to patient consent, surgical education, and biomechanical research.