Stress shielding effect of the trihedral fix trough plate,trapezoid compression plate and Tianjin compression plate on the long bone measured with the electrical measuring method.

• 用电测法测量了三种股骨中段骨折内固定钢板（三面固定槽形板、梯形板、天津板）固定后对骨的应力遮挡效应。