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

目的：论证股骨髁间骨折采用Ｌ型髁钢板＋螺钢板＋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力分析法和有限元现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＋螺椎内固定优于Ｌ形髁钢板，加钢板＋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＋螺栓联合固定是治疗股骨髁间骨折较好的内

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

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.