Biomechanical analysis of large segmental bone repair with different fixation apparatuses

Efficient mechanical tools for the structural optimization of variable fixation apparatuses are presented in this study. The defect model prepared from 24 ulna-radius specimens are fixated respectively and randomly with new designed internal fixation panel, AO 4 holes panel, one-side external fixation bracket of Zimmer and negative comparison group, different experimental data are analyzed. Through experimental results, it can be concluded that the method in this study represents a novel approach to optimize the design of stiffened fixation apparatus, furthermore, it can overcome the drawbacks of both fixed mode and structural shape.