股骨髁间骨折采用L形髁钢板+螺栓内固定的生物力学分析  

BIOMECHANICAL ANALYSIS OF THE INTERNAL FIXATION FOR FRACTURE OF FEMORAL CONDYLE BY USING L SHAPED CONDYLE STEEL PLATEBOLT

作　　者：李强一 王以进[2] 张秋琴 邵建康 

机构地区：[1]上海市嘉定区中心医院骨科,201800 [2]上海大学生物力学研究所

出　　处：《医用生物力学》1999年第4期226-231,共6页Journal of Medical Biomechanics

摘　　要：目的：论证股骨髁间骨折采用Ｌ型髁钢板＋螺栓，Ｌ形髁钢板，加压钢板＋螺栓固定，比较三种不同内固定方式的优劣，并为临床提供科学依据。方法：用９具新鲜股骨尸标本以实验应刀分析法和有限元理论计算法对股骨髁间骨折内固定进行力学分析。结果：证明Ｌ形髁钢板＋螺栓内固定优于Ｌ形髁钢板，加压钢板＋螺栓固定，应力和髁间位移两者具有显著性差异（Ｐ＜０．０１）结论：Ｌ形髁钢板个螺栓联合固定是治疗股骨髁间骨折较好的内固定方法，值得推广应用。The Franctures have been fixed by using L- shaped condyle steel plate+bolt. L - shapedcondyle steel plate and compressed steel plate+bolt fixation. These three different internal fixationmethods have been compared in order to provide scientific basis for clinical practices. Methods To 9fresh cadaver femora samples, we perform mechanics analysis for the internal fixation of femoracondyle experimentally using stress analysis and theoretically using finite element method(FEM).Results It has been proved that the internal fixation using L- shaped condyle steel plate+bolt isbetter than that using L- shaped condyle steel plate and compressed steel plate+b(ilt. There existdistinct differences in stress and displacement between two condyles(p<0.01). Conclusion Thecombined fixation of L - shaped condyle stress plate+bolt is a very good internal fixation methodfor curing the fracture of femora condyle. It deserves to be put into application and populatization.

关 键 词：股骨髁间骨折 L形髁钢板螺栓 生物力学 

分 类 号：R683.420.5[医药卫生—骨科学] R318.01[医药卫生—外科学]