中国组织工程研究2016，Vol.20Issue(26)：3805-3810,6.DOI:10.3969/j.issn.2095-4344.2016.26.001
股骨头双极假体置换及内固定修复老年股骨颈骨折的生物力学特征
Biomechanical characteristics of bipolar femoral head prosthesis replacement and internal fixation for femoral neck fractures in the elderly
姜源涛 1焦建宝 1薛金伟 1王云飞1
作者信息
- 1. 河北大学附属医院骨外科，河北省保定市 071000
- 折叠
摘要
Abstract
BACKGROUND:Bipolar femoral head prosthesis has achieved the desired repair effect in patients with femoral neck fracture, but there is stil much controversy on the biomechanical properties of bipolar artificial femoral head prosthesis. OBJECTIVE:To compare biomechanical properties of the bipolar femoral head prosthesis replacement and internal fixation in the repair of femoral neck fracture in the elderly. METHODS:Twenty-three (46 sides) senile femoral neck fracture specimens were analyzed and randomized into internal fixation group(n=23)and bipolar femoral head prosthesis replacement group (n=23). Specimens in the internal fixation group underwent conventional metal implant fixation. Specimens in the bipolar femoral head prosthesis replacement group underwent bipolar femoral head prosthesis replacement. Mechanical properties of femoral prosthesis stem were tested on universal testing machine. Biomechanical properties after bipolar femoral head prosthesis replacement and internal fixation were compared. RESULTS AND CONCLUSION:(1) The maximum loadwassignificantly higher in the bipolar femoral head prosthesis replacement group than in the internal fixation group (P< 0.05). The maximum load trend images showed that the maximum load was significantly higher in the bipolar femoral head prosthesis replacement group than in the internal fixation group (P< 0.05). (2) The displacement in axial pul test was significantly shorter in the bipolar femoral head prosthesis replacement group than in theinternal fixation group (P< 0.05). The displacement trend images exhibited that the displacement in axial pul test was significantly shorter in the bipolar femoral head prosthesis replacement group than in the internal fixation group (P< 0.05). (3) These findings suggest that compared with the implant, bipolar femoral head prosthesis replacement in the repair of femoral neck fracture in the elderly is more stable, has better repair effects, can elevate hip function and obtain good initial stability.关键词
骨科植入物/人工假体/股骨头双极假体置换/内固定/老年股骨颈骨折/生物力学/轴向拔出试验位移/髋关节功能分类
医药卫生引用本文复制引用
姜源涛,焦建宝,薛金伟,王云飞..股骨头双极假体置换及内固定修复老年股骨颈骨折的生物力学特征[J].中国组织工程研究,2016,20(26):3805-3810,6.
