Using three-dimensional computational modeling to compare the geometrical fitness of two kinds of proximal femoral intramedullary nail for Chinese femur.
Using three-dimensional computational modeling to compare the geometrical fitness of two kinds of proximal femoral intramedullary nail for Chinese femur.
复制标题
利用三维计算模型比较两种中国股骨近端髓内钉的几何适合度
DOI：
10.1155/2013/978485
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发表时间：
2013
影响因子：
--
通讯作者：
Yu B
中科院分区：
文献类型：
--
作者：
Zhang S;Zhang K;Wang Y;Feng W;Wang B;Yu B
目标。本研究的目的是使用三维（3D）计算模型来比较这两种股骨近端髓内钉在中国股骨中的几何适合度。本文收集了120例正常中国成人尸体股骨的CT扫描结果进行分析。利用三维（3D）计算技术，根据虚拟骨模型中股骨内种植体近端、中端和远端钉突入皮质的撞击发生率、最大厚度和长度，量化钉与骨的解剖适合度。结果表明，PFNA-II比InterTan更适合中国股骨近端，InterTan远端部分比PFNA-II更适合中国股骨；对于中国患者来说，两根指甲的解剖适应性可能不太令人满意。因此，这两种植入物都需要进一步修改以满足中国人口的需求。
Objective. The aim of this study was to use three-dimensional (3D) computational modeling to compare the geometric fitness of these two kinds of proximal femoral intramedullary nails in the Chinese femurs. Computed tomography (CT) scans of a total of 120 normal adult Chinese cadaveric femurs were collected for analysis. With the three-dimensional (3D) computational technology, the anatomical fitness between the nail and bone was quantified according to the impingement incidence, maximum thicknesses and lengths by which the nail was protruding into the cortex in the virtual bone model, respectively, at the proximal, middle, and distal portions of the implant in the femur. The results showed that PFNA-II may fit better for the Chinese proximal femurs than InterTan, and the distal portion of InterTan may perform better than that of PFNA-II; the anatomic fitness of both nails for Chinese patients may not be very satisfactory. As a result, both implants need further modifications to meet the needs of the Chinese population.