Biomechanical Study of External Fixation of Xie's Splint and Anatomical Splint in the Treatment of Colles Fracture
Objective:To study the biomechanical properties of Xie's splint external fixation on the skin,bone,splint and other structures of Colles'fractured arm.Methods:Xie's splint and anatomical splint were used for the external fixation of Colles fracture of arm radius.CT data of the two groups in the form of splint were collected and image reconstruction was carried out.The stress nebulogram of arm skin,bone,splint and other structures were simulated based on finite element method,and biomechanical analysis and research were carried out.Results:When the arm was externally fixed with the Xie's splint,significant stress concentration appeared in different areas of the arm skin surface.The structural stress distri-bution of the splint itself was also relatively significant.In comparison,the overall stress distribution of Xie's splint on the skin on the medial and dorsal sides of the arm at the radial fracture was significantly greater than that of the anatomical splint.Conclusion:Xie's splint has a good therapeutic effect on resisting fracture dislocation movement near radial fractures after external fixation of Colles fractures of the arm.