儿童股骨颈前倾角的数字化三维重建与解剖测量  

Digitalized visualization reconstruction and three-dimensional geometry measurement of femoral neck anteversion in children

作　　者：吴显奎 李培 吴伟平[3] 燕华[3] 史强[3] 李旭[3] 

机构地区：[1]东莞市中医院,广东东莞523005 [2]东莞市茶山医院,广东东莞523382 [3]南方医科大学第三附属医院(广东省骨科研究院),广东广州510000

出　　处：《解剖学研究》2015年第6期475-478,共4页Anatomy Research

基　　金：东莞市医疗卫生单位重点项目(2011105102005)

摘　　要：目的探讨发育性髋关节脱位患儿股骨颈前倾角的数字化测量方法，为股骨近端截骨手术提供解剖学依据。方法收集单侧发育性髋关节脱位儿20例，其中男10例，女10例，应用Mimiesl5．0软件，利用数字化三维重建技术重建股骨，标定相关解剖标志测量患侧及健侧股骨颈前倾角，并与在断层CT上测量的股骨颈前倾角相比较。结果重建的股骨数字化虚拟可视模型能够从多角度、多平面进行观察及测量，二维CT测量健侧和患侧股骨颈前倾角分别为（25．54±7．17）°和（42．98±10．36）°，数字化三维重建测量健侧和患侧股骨颈前倾角分别为（24．29±3．46）°和（40．36±5．42）°。数字化三维重建股骨颈前倾角与二维CT测量的数值差异有统计学意义（P〈0．05）。结论基于三维CT扫描的股骨数字化三维重建图像具有良好的形态和清晰的边界，可精确识别出股骨前倾角的解剖数据，为完成个体化的股骨截骨术提供了新的方法。Objective To explore digital measurement of the femoral neck anteversion on three-dimensional reconstruction of CT images of the femur in DDH to get reasonable parameters for proximalfemoral osteotomy. Methods Three-dimensional comput- ed tomography was performed on 20 children with unilateral DDH. The three-dimensional reconstruction of the femur was performed using Mimicsl5.0 software on the basis of the CT data. The bony landmarks determining relevant anatomy were made on the three-di- mensional images of the morbid femur. Results In the 2-D CT group, the FNA whose in normal hips was 25.54°±7.17° while 42.98°±10.36° in dysplasia hips respectively. And in the 3-D digital measurement group, the FNA whose in normal hips was 24.290°±3.46° while 40.36°±5.42° in dysplasia hips respectively. The difference between the two groups was statistically significant. Conclusion It is feasible to accurately identify the anatomy landmarks on the three-dimensional reconstruction of the femur. Digital measurement of the femoral neck anteversion anatomy can provide references for the design of proximal femoral osteotomy and the formulation of operation approach.

关 键 词：数字化 三维重建 股骨颈前倾角 

分 类 号：R322.71[医药卫生—人体解剖和组织胚胎学]