中国组织工程研究2016，Vol.20Issue(13)：1911-1917,7.DOI:10.3969/j.issn.2095-4344.2016.13.012
有限元分析髋臼横行骨折不同植入物的内固定方式
Different fixation methods for transverse acetabular fracture：a finite element analysis
周坚锋 1李建涛 1张浩 2李辰 3尹鹏 1李志锐 4陈宇翔 1唐佩福 1张立海1
作者信息
- 1. 解放军总医院骨科，北京市 100853
- 2. 解放军第264医院骨科，山西省太原市 030001
- 3. 天津市天津医院骨科，天津市 300211
- 4. 南开大学医学院，天津市 300071
- 折叠
摘要
Abstract
BACKGROUND:Transverse acetabular fracture often involves the damage of anterior and posterior columns of acetabulum. The most popular fixation of the anterior and posterior columns needs the combined anterior and posterior approach. Big trauma is not conducive to patient’s recovery after surgery. Limited incision or percutaneous minimaly invasive lag screw placement can reduce soft tissue injuries, but the strength of the fixation lacks of biomechanical verification. OBJECTIVE: To compare different types of fixations for transverse acetabular fracture, explore the appropriate fixation options that can achieve effective fixation and reduce tissue injury by combing with repair approach and the condition of soft tissue. METHODS: The fourth generation of synthetic semi-pelvic sawbones was set as a template to establish a model of acetabular transverse fracture using finite element analysis. Five different fixation options were used to fix the transverse acetabular fracture. The magnitudes of anterior and posterior displacement of transverse fracture were compared to assess the stability of different options under a simulated condition of incomplete weight bearing stand. RESULTS AND CONCLUSION:The motion at anterior column was minimal when fixed by anterior column locking plate + posterior column screw and the minimum displacement at posterior column was the fixation of anterior column screw + posterior column locking plate. Both of the motions of these two fixations were less than the reconstruction plate fixation respectively. The worst fixation was the anterior column and posterior column lag screw fixation with the largest displacement. The anterior column locking plate + posterior column screw, accomplished by single approach, could not only reduce surgical trauma, but also has a stronger stability. Moreover, this fixation option is effective method to place posterior column lag screw under direct vision and reduce the difficulty of screw implantation.关键词
骨科植入物/数字化骨科/髋臼/横行骨折/内固定/有限元分析/生物力学/手术入路分类
医药卫生引用本文复制引用
周坚锋,李建涛,张浩,李辰,尹鹏,李志锐,陈宇翔,唐佩福,张立海..有限元分析髋臼横行骨折不同植入物的内固定方式[J].中国组织工程研究,2016,20(13):1911-1917,7.
