股骨颈角度影响髋关节疾病和手术干预：患者特定的3D打印分析
Femoral Neck Angle Impacts Hip Disorder and Surgical Intervention: A Patient-Specific 3D Printed Analysis
摘要：
本研究旨在探讨股骨颈成角对动力髋螺钉（DHS）手术并发症和髋关节畸形的预测作用。选取3例样本患者的MRI图像，计算股骨颈角。共重建了6个股骨头几何形状，并打印了三维（3D）模型。颈部角度的计算在计算机模型和3D打印模型中完成。我们的研究结果表明，3D打印模型实现了高精度，并提供了物理测量，与计算机模型相比无法确认。与不复杂DHS手术相关的颈部角度范围为129°-139°，正常颈部角度的非畸形范围为120°-135°。我们的研究表明，患者特定的3D打印股骨头模型为医学教育和辅助DHS手术提供了有用的信息。需要在大样本量的基础上进行进一步研究。
英文摘要：
The purpose of this study is to investigate the femoral neck angulation for prediction of the complication associated with dynamic hip screw (DHS) surgery and hip deformity. Three sample patients' MRI images were selected to calculate the femoral neck angles. A total of six femur head geometries were reconstructed and three dimensional (3D) models printed. The calculation of neck angles was done in both computer models and 3D-printed models. Our results showed that 3D-printed models achieved high accuracy and provided the physical measurements, when compared to the computer models could not confirm. Neck angulations related to uncomplicated DHS surgery ranged between 129°-139°, and non-deformity of normal neck angles ranged between 120°-135°. Our study indicated that patient-specific 3D printed femoral head models provide useful information for medical education and assist DHS surgery. Further research based on a large sample size is necessary.
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