Results:For unstable distal radius fractures, it was perferable to be treated by open reduction and T plate internal fixation(P< 0.01).
结果：对于桡骨远端不稳定骨折，切开复位T形钢板内固定疗效明显优于石膏夹板外固定（P<0.01）；
2
There also difference(P<0.05) between close reduction fixation group and control group. Among them, the viscosity was in creased most serious in steel plate fixation group.
闭合复位固定与空白组也有差异（P＜0．05），其中钢板固定组粘度为最大。
3
Wave propagation properties for P-SV wave in a free-fixed infinite plate in the state of plane strain problem were investigated.