• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Bone & Joint Research >Effect of femoral canal shape on mechanical stress distribution and adaptive bone remodelling around a cementless tapered-wedge stem
【24h】

Effect of femoral canal shape on mechanical stress distribution and adaptive bone remodelling around a cementless tapered-wedge stem

机译：股骨管形状对非骨水泥锥形楔形茎周围机械应力分布和自适应骨重塑的影响

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

ObjectivesIn total hip arthroplasty (THA), the cementless, tapered-wedge stem design contributes to achieving initial stability and providing optimal load transfer in the proximal femur. However, loading conditions on the femur following THA are also influenced by femoral structure. Therefore, we determined the effects of tapered-wedge stems on the load distribution of the femur using subject-specific finite element models of femurs with various canal shapes.Patients and MethodsWe studied 20 femurs, including seven champagne flute-type femurs, five stovepipe-type femurs, and eight intermediate-type femurs, in patients who had undergone cementless THA using the Accolade TMZF stem at our institution. Subject–specific finite element (FE) models of pre- and post-operative femurs with stems were constructed and used to perform FE analyses (FEAs) to simulate single-leg stance. FEA predictions were compared with changes in bone mineral density (BMD) measured for each patient during the first post-operative year....
机译：目的在全髋关节置换术（THA）中，非骨水泥锥形楔形茎杆设计有助于实现初始稳定性并在股骨近端提供最佳的载荷传递。然而，THA后股骨的负荷状况也受股骨结构影响。因此，我们使用具有不同管形形状的特定于对象的股骨有限元模型，确定了楔形楔形茎对股骨负荷分布的影响。患者和方法我们研究了20股股骨，包括7支香槟长笛型股骨，5支瘦腿型股骨。在我们机构使用Accolade TMZF茎进行了非骨水泥性THA的患者中，出现了2型股骨和8个中型股骨。构建了带有股骨的术前和术后股骨的受试者特定有限元（FE）模型，并用于执行FE分析（FEA）以模拟单腿姿势。将FEA预测与术后第一年中每个患者测得的骨矿物质密度（BMD）的变化进行比较。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号