Department of Civil Engineering, Gebze Technical University, 41400 Kocaeli, Turkey.
Department of Civil Engineering, Atatürk University, 25240 Erzurum, Turkey.
ACS Appl Bio Mater. 2022 Jun 20;5(6):3013-3022. doi: 10.1021/acsabm.2c00321. Epub 2022 Jun 8.
Femoral neck fractures (FNFs) are among the most common types of hip fractures. Particularly in young patients, these fractures require adequate fixation. These fractures, which are prevalent in elderly patients, are usually treated with implant applications. In implant applications, it is possible to find many different fixation configurations with various implant materials. The purpose of this study is to investigate the effects of metallic implant materials on fixation performance in the application of cannulated screws in an inverted triangle (CSIT), which are most preferred by orthopedic surgeons. Therefore, a femur bone with a type 2 fracture was numerically modeled and performances of CSIT implants with different biocompatible metals were investigated over nonlinear finite-element analyses (FEA). Within the study, stainless steel (SS), pure titanium (pTi), titanium alloy (Ti6Al4V), cobalt-chromium alloy (Co-Cr), and magnesium alloy (WE43) materials, frequently used as biocompatible implant materials, were taken into consideration and their performances were evaluated under static, vibration, and fatigue analyses. Throughout the comparison of analysis results and an optimality indicator formula, the optimum material was found to be the Co-Cr alloy on the basis of considered performance characteristics.
股骨颈骨折（FNFs）是最常见的髋部骨折类型之一。特别是在年轻患者中，这些骨折需要充分固定。这些在老年患者中常见的骨折通常采用植入物应用来治疗。在植入物应用中，可以找到许多不同的固定配置，使用各种植入物材料。本研究旨在研究金属植入物材料对在倒三角形（CSIT）中应用空心螺钉固定性能的影响，这是骨科医生最常采用的方法。因此，对具有 2 型骨折的股骨进行了数值建模，并通过非线性有限元分析（FEA）研究了不同生物相容性金属的 CSIT 植入物的性能。在研究中，考虑了经常用作生物相容性植入物材料的不锈钢（SS）、纯钛（pTi）、钛合金（Ti6Al4V）、钴铬合金（Co-Cr）和镁合金（WE43）材料，并在静态、振动和疲劳分析下评估了它们的性能。通过比较分析结果和最优性指标公式，根据考虑的性能特征，发现 Co-Cr 合金是最优材料。
